id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A252463
[ 1, 1, 2, 2, 3, 3, 5, 4, 4, 5, 7, 6, 11, 7, 6, 8, 13, 9, 17, 10, 10, 11, 19, 12, 9, 13, 8, 14, 23, 15, 29, 16, 14, 17, 15, 18, 31, 19, 22, 20, 37, 21, 41, 22, 12, 23, 43, 24, 25, 25, 26, 26, 47, 27, 21, 28, 34, 29, 53, 30, 59, 31, 20, 32, 33, 33, 61, 34, 38, 35, 67, 36, 71, 37, 18, 38, 35, 39, 73, 40, 16 ]
[ "nonn", "look" ]
A116245
[ 8, 698, 775, 789, 866, 42336, 57656, 96882, 44121665, 55878327, 85298136, 3.668070300957561e+28, 6.331929699042439e+28, 6.934634245487607e+28, 8.150111517224258e+28 ]
[ "nonn", "base" ]
A292381
[ 1, 2, 4, 4, 9, 8, 18, 8, 9, 18, 36, 16, 73, 36, 16, 16, 147, 18, 294, 36, 37, 72, 588, 32, 19, 146, 16, 72, 1177, 32, 2354, 32, 73, 294, 32, 36, 4709, 588, 144, 72, 9419, 74, 18838, 144, 33, 1176, 37676, 64, 39, 38, 292, 292, 75353, 32, 74, 144, 589, 2354, 150706, 64, 301413, 4708, 72, 64, 147, 146, 602826, 588, 1177, 64, 1205652, 72, 2411305, 9418, 36, 1176 ]
[ "nonn", "base" ]
A127006
[ 1, 1, 3, 16, 19, 35, 89, 124, 213, 763, 7843, 16449, 24292, 89325, 202942, 4959933, 5162875, 20448558, 46059991, 158628531, 204688522, 363317053, 568005575, 51483818803, 103535643181, 155019461984, 1963769186989, 2118788648973 ]
[ "nonn" ]
A116338
[ 700, 777, 791, 868, 42338, 57658, 96884, 44121667, 55878329, 85298138, 3.668070300957561e+28, 6.331929699042439e+28, 6.934634245487607e+28, 8.150111517224258e+28 ]
[ "nonn", "base" ]
A261372
[ 36, 41, 202, 1040, 5633, 42302, 461576, 5441268, 87288274, 1757770516, 47269754142, 1497418790742, 65202132975489, 3410709440318090, 240487233522340500, 20318813275802200000, 2.3372666277795778e+21 ]
[ "nonn" ]
A202523
[ 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 2, 0, 4, 0, 0, 0, 1, 0, 4, 0, 1, 0, 5, 0, 4, 0, 0, 0, 3, 0, 5, 0, 0, 0, 6, 0, 1, 1, 2, 0, 6, 0, 6, 1, 1, 0, 4, 0, 12, 0, 1, 1, 12, 1, 9, 0, 0, 1, 10, 0, 10, 0, 1, 2, 10, 1, 4 ]
[ "nonn" ]
A346033
[ 1, 2, 14, 55, 33, 11, 35489, 46849, 50754, 51819, 52174, 260515, 1719612, 573204, 21104200, 37362253, 42781604, 122925461, 534483448 ]
[ "nonn", "more" ]
A138858
[ 1, 4, 9, 16, 36, 81, 144, 324, 625, 1156, 2401, 4900, 9801, 19600, 39204, 78400, 156816, 313600, 627264, 1254400, 2509056, 5022081, 10042561, 20088324, 40182921, 80371225, 160731684, 321484900, 642977449, 1285939600, 2571909796, 5143901841, 10287842041, 20575607364, 41151368164, 82303003225, 164606284089, 329212012900, 658425136356, 1316850346681, 2633700545424, 5267401386724 ]
[ "nonn" ]
A145433
[ 2, 7, 4, 4, 3, 2, 7, 1, 5, 2, 7, 7, 1, 2, 0, 3, 2, 3, 1, 1, 1, 1, 5, 4, 6, 5, 8, 6, 3, 6, 0, 4, 8, 4, 3, 4, 0, 3, 3, 9, 6, 5, 6, 5, 4, 6, 0, 3, 2, 2, 3, 1, 7, 2, 3, 8, 0, 5, 6, 0, 4, 8, 8, 3, 1, 9, 4, 0, 4, 8, 9, 7, 2, 3, 6, 8, 9, 0, 5, 5, 6, 9, 0, 8, 9, 1, 9, 2, 2, 1, 1, 7, 5 ]
[ "cons", "easy", "nonn" ]
A232738
[ 1, 9, 5, 0, 9, 0, 3, 2, 2, 0, 1, 6, 1, 2, 8, 2, 6, 7, 8, 4, 8, 2, 8, 4, 8, 6, 8, 4, 7, 7, 0, 2, 2, 2, 4, 0, 9, 2, 7, 6, 9, 1, 6, 1, 7, 7, 5, 1, 9, 5, 4, 8, 0, 7, 7, 5, 4, 5, 0, 2, 0, 8, 9, 4, 9, 4, 7, 6, 3, 3, 1, 8, 7, 8, 5, 9, 2, 4, 5, 8, 0, 2, 2, 5, 3, 2, 5, 3, 0, 9, 2, 3, 4, 0, 9, 0, 3, 8, 1, 7, 3, 0, 9, 9, 2 ]
[ "nonn", "cons", "easy" ]
A097185
[ 1, 15, 232, 3627, 57016, 899298, 14216560, 225110307, 3568890328, 56635884470, 899474459280, 14294357356110, 227286593929136, 3615608476770340, 57538659207907550, 915981394162628400, 14586262906867730000 ]
[ "nonn" ]
A339769
[ 1, 2, 4, 4, 5, 6, 10, 12, 9, 7, 4, 9, 13, 11, 7, 6, 8, 10, 13, 14, 10, 15, 14, 21, 8, 7, 13, 21 ]
[ "nonn", "more" ]
A146792
[ 1, 1, 1, 1, 1, 1, 17, 29, 597, 1129, 8865, 24301, 252485, 677761, 72037073, 260058405, 50790437661, 228224469561, 29783355194457, 163753391774397, 29294065583268724, 187282551074891500 ]
[ "nonn" ]
A198191
[ 1, 2, 3, 5, 6, 7, 11, 12, 13, 17, 18, 21, 23, 24, 25, 27, 28, 29, 31, 32, 33, 35, 36, 37, 39, 41, 43, 44, 45, 47, 52, 53, 59, 60, 61, 67, 68, 71, 73, 74, 75, 77, 78, 79, 81, 83, 85, 86, 87, 89, 91, 93, 94, 95, 97, 98, 100, 101, 103, 104, 105, 107, 109, 111 ]
[ "nonn" ]
A019341
[ 2, 5, 11, 19, 31, 37, 41, 47, 59, 67, 71, 73, 83, 89, 97, 109, 137, 149, 151, 167, 197, 227, 239, 241, 281, 293, 307, 317, 349, 353, 359, 379, 383, 397, 401, 431, 449, 457, 479, 487, 509, 541, 557, 577, 587, 593, 613, 617, 631, 643, 683, 691, 733, 743, 769, 773, 787, 811 ]
[ "nonn" ]
A248304
[ 8, 2, 3, 10, 92, 14491, 322744746, 254675920984809200, 1.0624154761275184e+35, 6.382269610369985e+70 ]
[ "nonn" ]
A336665
[ 1, 1, 10, 255, 12196, 939155, 106161756, 16554165495, 3404986723720, 893137635015219, 290965846152033500, 115256679181251690000, 5.455299257266333e+22, 3.0406695393635478e+25, 1.9712738332895648e+28, 1.4707436666152282e+31 ]
[ "nonn" ]
A252042
[ 2, 29, 1709, 5849, 6857, 6959, 8999, 10139, 11909, 13127, 13877, 15077, 15749, 17657, 19457, 23357, 23399, 26729, 27407, 27479, 28349, 30047, 31907, 32957, 39569, 46559, 46589, 46817, 50417, 58757, 59219, 60737, 62207, 62687, 62819, 66947, 70589, 71237, 74699 ]
[ "nonn" ]
A134986
[ 2, 3, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 65 ]
[ "nonn" ]
A184084
[ 6, 8, 3, 7, 9, 2, 8, 4, 2, 3, 5, 9, 4, 7, 4, 3, 6, 8, 9, 9, 4, 3, 6, 3, 6, 4, 3, 4, 1, 0, 7, 6, 3, 4, 4, 4, 3, 6, 8, 2, 2, 1, 0, 8, 7, 5, 8, 1, 8, 1, 7, 3, 5, 2, 6, 2, 9, 4, 7, 1, 2, 9, 8, 1, 0, 5, 5, 9, 9, 0, 4, 2, 3, 5, 5, 6, 5, 5, 7, 7, 7 ]
[ "cons", "nonn" ]
A158081
[ 333, 33, 23, 1213, 11121113, 31123113, 132112132113, 11131221121113123000, 3.113112221123113e+23, 1.3211321322112133e+27, 1.1131221131211132e+43, 3.113112221131112e+51, 1.321132132211331e+59 ]
[ "nonn" ]
A115297
[ 1, 3, 2, 5, 4, 9, 2, 8, 11, 6, 10, 15, 4, 8, 14, 17, 6, 12, 16, 21, 2, 10, 14, 20, 27, 6, 12, 18, 26, 29, 4, 8, 16, 24, 28, 35, 6, 12, 22, 26, 34, 39, 2, 10, 18, 24, 32, 38, 41, 6, 16, 20, 30, 36, 40, 45, 4, 12, 18, 26, 34, 38, 44, 51, 10, 14, 24, 30, 36, 42, 50, 57, 6, 12, 20, 28, 32 ]
[ "easy", "nonn", "tabf", "uned" ]
A335934
[ 1, 2, 6, 66, 2772, 279972, 67566576, 5159488849515, 83797355379738 ]
[ "nonn", "hard", "base" ]
A180035
[ 1, 6, 33, 183, 1014, 5619, 31137, 172542, 956121, 5298231, 29359518, 162692283, 901539969, 4995776694, 27683503377, 153404846967, 850074744966, 4710588265731, 26103165563553, 144647592614958, 801547459765449 ]
[ "easy", "nonn" ]
A272058
[ 0, 0, 1, 3, 6, 10, 14, 20, 25, 33, 39, 49, 56, 68, 76, 90, 99, 115, 125, 143, 154, 174, 186, 208, 221, 245, 259, 285, 300, 328, 344, 374, 391, 423, 441, 475, 494, 530, 550, 588, 609, 649, 671, 713, 736, 780, 804, 850, 875, 923, 949, 999, 1026, 1078, 1106 ]
[ "nonn", "easy" ]
A049157
[ 1, 1, 3, 9, 33, 125, 503, 2083, 8869, 38501, 169915, 759825, 3435865, 15683345, 72169359, 334434167, 1559321913, 7309978681, 34434345123, 162908461641, 773722223233, 3687704296661, 17632682994247, 84557405840171 ]
[ "nonn" ]
A290518
[ 1, 1, 2, 2, 6, 12, 12, 48, 144, 288, 288, 1440, 5760, 17280, 34560, 34560, 207360, 1036800, 4147200, 12441600, 24883200, 24883200, 174182400, 1045094400, 5225472000, 20901888000, 62705664000, 125411328000, 125411328000, 1003290624000, 7023034368000 ]
[ "nonn" ]
A040849
[ 29, 1, 1, 1, 5, 3, 1, 3, 2, 9, 2, 3, 1, 3, 5, 1, 1, 1, 58, 1, 1, 1, 5, 3, 1, 3, 2, 9, 2, 3, 1, 3, 5, 1, 1, 1, 58, 1, 1, 1, 5, 3, 1, 3, 2, 9, 2, 3, 1, 3, 5, 1, 1, 1, 58, 1, 1, 1, 5, 3, 1, 3, 2, 9, 2, 3, 1, 3, 5, 1, 1, 1, 58, 1, 1, 1, 5, 3, 1, 3, 2, 9, 2, 3, 1, 3, 5, 1, 1, 1, 58 ]
[ "nonn", "cofr", "easy" ]
A232399
[ 4, 16, 52, 1120, 13532, 798692, 31802528, 5824262024, 752183288216, 442761087574020, 185196365472026880, 352995486371015160000 ]
[ "nonn" ]
A280052
[ 1, 2, 1, 2, 3, 1, 2, 1, 4, 1, 2, 3, 4, 2, 1, 2, 4, 4, 2, 1, 1, 2, 1, 4, 2, 2, 3, 1, 2, 1, 4, 2, 1, 3, 6, 1, 2, 5, 4, 2, 1, 3, 6, 2, 1, 2, 4, 4, 2, 3, 3, 6, 2, 1, 1, 2, 1, 4, 2, 4, 3, 6, 2, 1, 5, 1, 2, 3, 4, 2, 1, 3, 6, 2, 1, 5, 6, 1, 2, 3, 4, 2, 2, 3, 6, 2, 1 ]
[ "nonn" ]
A253918
[ 1, 2, 1, 4, 6, 12, 29, 56, 134, 300, 682, 1624, 3772, 9016, 21597, 51888, 126086, 306636, 750398, 1843864, 4543604, 11242088, 27887730, 69378192, 173050396, 432596216, 1083862132, 2720961520, 6843557944, 17242789104, 43514507997, 109983815264, 278385212358 ]
[ "nonn" ]
A127511
[ 1, -2, -4, 0, -16, 32, -64, 0, 0, 512, -1024, 0, -4096, 8192, 16384, 0, -65536, 0, -262144, 0, 1048576, 2097152, -4194304, 0, 0, 33554432, 0, 0, -268435456, -536870912, -1073741824, 0, 4294967296, 8589934592, 17179869184, 0, -68719476736, 137438953472, 274877906944, 0, -1099511627776 ]
[ "sign", "easy" ]
A177082
[ 6, 32, 90, 208, 390, 672, 1050, 1568, 2286, 3160, 4290, 5664, 7254, 9128, 11370, 14016, 16966, 20376, 24206, 28400, 33138, 38368, 44206, 50784, 57950, 65624, 73926, 82768, 92278, 103080, 114638, 127104, 140250, 154632, 169750, 185904, 203130, 221312, 240630 ]
[ "nonn" ]
A293999
[ 1, 1, 3, 15, 105, 945, 10395, 135135, 675675, 3790647, 23694083, 162961399, 1209395171, 9332799283, 70178707279, 474578729935, 3181796735723, 21683288205723, 150990425051331, 1069361164106091, 7617764489275535, 53863160510249544, 375786310609620350 ]
[ "nonn", "easy" ]
A077704
[ 6, 36, 396, 30096, 4093056, 2799650304, 1299037741056, 1293841590091776, 2059795811426107400, 2.412020895179972e+21, 2.402372811599252e+24, 1.162508203532878e+28, 9.374466153289128e+31 ]
[ "base", "nonn" ]
A380204
[ 1, 1, 2, 2, 1, 6, 7, 3, 5, 3, 5, 6, 10, 9, 2, 13, 3, 16, 10, 2, 15, 6, 15, 6, 21, 1, 7, 23, 26, 6, 20, 12, 27, 29, 7, 2, 36, 11, 6, 7, 32, 6, 32, 43, 10, 31, 7, 5, 42, 1, 17, 48, 7, 31, 53, 25, 42, 43, 29, 39, 51, 25, 43, 7, 26, 59, 15, 10, 60, 69, 13, 57, 54, 66, 57, 30, 9, 35, 64, 9, 65, 1, 15, 3, 79, 47, 86, 7 ]
[ "nonn", "word" ]
A349218
[ 0, 1, 0, 1, 1, 2, 1, 2, 1, 1, 0, 1, 0, 0, -1, 0, -1, 0, 0, 1, 0, 1, 1, 2, 2, 1, 1, 2, 2, 3, 2, 3, 3, 4, 3, 4, 3, 3, 2, 3, 2, 2, 1, 2, 1, 2, 2, 3, 2, 3, 2, 2, 1, 2, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, -1, 0, -1, -1, -2, -1, -2, -1, -1, 0, -1, 0, -1, -1, -2, -1 ]
[ "sign" ]
A047331
[ 2, 3, 5, 6, 9, 10, 12, 13, 16, 17, 19, 20, 23, 24, 26, 27, 30, 31, 33, 34, 37, 38, 40, 41, 44, 45, 47, 48, 51, 52, 54, 55, 58, 59, 61, 62, 65, 66, 68, 69, 72, 73, 75, 76, 79, 80, 82, 83, 86, 87, 89, 90, 93, 94, 96, 97, 100, 101, 103, 104, 107, 108, 110, 111 ]
[ "nonn", "easy" ]
A296856
[ 1, 0, 3, 15, 224, 4545, 126753, 4626076, 213703095, 12167727543, 835893746300, 68091766034061, 6483302813035857, 712860388963255000, 89585739948801880000, 1.275352476733586e+22, 2.0408049976785904e+24, 3.645679870044336e+26 ]
[ "nonn" ]
A288731
[ 3, 4, 6, 7, 13, 14, 16, 17, 19, 20, 22, 23, 29, 30, 32, 33, 39, 40, 42, 43, 45, 46, 48, 49, 51, 52, 54, 55, 61, 62, 64, 65, 71, 72, 74, 75, 77, 78, 80, 81, 87, 88, 90, 91, 97, 98, 100, 101, 103, 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 125, 126 ]
[ "nonn", "easy" ]
A050608
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 28, 29, 30, 31, 35, 36, 37, 38, 42, 43, 44, 45, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 77, 78, 79, 80, 84, 85, 86, 87, 91, 92, 93, 94, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113 ]
[ "nonn", "easy", "base" ]
A086892
[ 1, 1, 1, 5, 1, 7, 1, 5, 1, 11, 23, 455, 1, 1, 1, 85, 1, 133, 1, 275, 1, 23, 47, 455, 1, 1, 1, 145, 1, 2387, 1, 85, 23, 1, 71, 23350145, 1, 1, 1, 11275, 1, 2107, 431, 115, 1, 47, 1, 750295, 1, 11, 1, 265, 1, 133, 23, 145, 1, 59, 1, 47322275, 1, 1, 1, 85, 1, 10787, 1, 5, 47, 781, 1 ]
[ "easy", "nonn" ]
A027231
[ 1, 2, 6, 26, 91, 424, 1563, 7490, 28363, 138154, 532277, 2622108, 10229514, 50827494, 200236656, 1001864238, 3978724091, 20024629606, 80072228433, 405071776024, 1629554359654, 8281491341260, 33495987519034, 170937706521070, 694795683685757, 3559265886170942 ]
[ "nonn" ]
A325841
[ 2, -1, 2, -3, 4, -6, 12, -28, 64, -136, 272, -528, 1024, -2016, 4032, -8128, 16383, -32878, 65621, -130188, 256158, -497420, 946352, -1748000, 3100078, -5200300, 8048666, -10897033, 10897061, -435, -41847869, 161227527, -461566314, 1165457645, -2740966304 ]
[ "easy", "sign" ]
A176241
[ 1, 20, 21, 32, 33, 34, 35, 44, 45, 54, 56, 66, 67, 86, 90, 106, 107, 108, 122, 130, 134, 140, 141, 147, 154, 155, 156, 169, 170, 172, 182, 189, 190, 210, 211, 212, 220, 224, 225, 226, 242, 248, 249, 256, 279, 280, 281, 312, 316, 318, 321, 324, 329, 338, 344 ]
[ "nonn" ]
A267227
[ 4, 16, 54, 176, 564, 1790, 5646, 17732, 55512, 173354, 540258, 1680848, 5221740, 16200758, 50204790, 155413724, 480622848, 1484980802, 4584213642, 14140323560, 43583756436, 134239102286, 413179757214, 1270924525556, 3906925144104 ]
[ "nonn" ]
A389837
[ 1, 0, 0, 1, 1, 5, 3, 7, 4, 3, 7, 3, 7, 9, 0, 9, 1, 0, 5, 6, 9, 0, 0, 0, 8, 0, 9, 7, 8, 3, 6, 1, 3, 5, 5, 7, 2, 1, 9, 6, 3, 0, 3, 6, 1, 4, 0, 6, 3, 5, 0, 8, 4, 0, 3, 5, 0, 7, 6, 9, 6, 0, 1, 1, 5, 3, 5, 7, 9, 3, 1, 6, 0, 0, 6, 4, 6, 6, 0, 3, 9, 6, 3, 6, 7, 6, 1, 3, 0, 6, 7, 3, 8, 2, 5, 1, 3, 5, 1, 3 ]
[ "nonn", "cons", "changed" ]
A213521
[ 2, 11, 29, 37, 37, 127, 127, 127, 127, 149, 149, 211, 223, 223, 307, 307, 331, 331, 331, 331, 541, 541, 541, 541, 541, 541, 541, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361, 1361 ]
[ "nonn" ]
A172003
[ 1, 1, 3, 5, 3, 13, 33, 33, 13, 71, 245, 351, 245, 71, 441, 1921, 3597, 3597, 1921, 441, 2955, 15525, 35931, 46709, 35931, 15525, 2955, 20805, 127905, 352665, 563821, 563821, 352665, 127905, 20805, 151695, 1067925, 3417975, 6483285, 7963151 ]
[ "nonn", "tabl" ]
A103895
[ 3, 3, 6, 31, 18864, 258624, 733755680, 13213440000, 115884221549652, 1.3728055588010472e+21, 4.099936867024332e+22, 1.8550539291654568e+30, 1.1389517872039842e+35, 4.701294182073055e+36 ]
[ "nonn" ]
A362954
[ 0, 6047, 7518, 8127, 12207, 25247, 50000, 71966, 77326, 89582, 156156, 376189, 384624, 384640, 599611, 611356, 700158, 794139, 796715, 800558, 1172829, 1329051, 1329324, 1329340, 1488080, 1492525, 1862190, 2546894, 2547885, 5295852, 5302286, 5755548, 6244080, 6246510, 7291980, 7869294 ]
[ "nonn", "base" ]
A152148
[ 1, 0, 1, 1, 0, 1, 4, 3, 0, 1, 27, 16, 6, 0, 1, 232, 135, 40, 10, 0, 1, 2455, 1392, 405, 80, 15, 0, 1, 30852, 17185, 4872, 945, 140, 21, 0, 1, 449113, 246816, 68740, 12992, 1890, 224, 28, 0, 1, 7432624, 4042017, 1110672, 206220 ]
[ "easy", "nonn", "tabl" ]
A136570
[ 1, 2, 3, 4, 7, 10, 17, 22, 32, 44, 62, 80, 112, 144, 193, 248, 323, 410, 530, 664, 845, 1054, 1324, 1634, 2037, 2498, 3082, 3760, 4601, 5580, 6789, 8186, 9891, 11876, 14271, 17052, 20393, 24260, 28876, 34224, 40557, 47888, 56540, 66516, 78240 ]
[ "nonn" ]
A055234
[ 1, 3, 2, 14, 56, 6, 12, 42, 30, 168, 2580, 210, 630, 420, 840, 20790, 416640, 9240, 291060, 83160, 120120, 5165160, 1719277560, 43825320, 26860680, 277560360, 1304863560, 569729160, 587133466920, 16522145640, 33044291280, 563462139240, 1140028049160, 9015394227840, 1255683068640, 65361608151840 ]
[ "nonn" ]
A348687
[ 0, 1, 0, 2, 1, 1, 3, 2, 2, 1, 4, 3, 3, 2, 3, 5, 4, 4, 3, 4, 3, 6, 5, 5, 4, 5, 4, 4, 7, 6, 6, 5, 6, 5, 5, 4, 8, 7, 7, 6, 7, 6, 6, 5, 7, 9, 8, 8, 7, 8, 7, 7, 6, 8, 7, 10, 9, 9, 8, 9, 8, 8, 7, 9, 8, 8, 11, 10, 10, 9, 10, 9, 9, 8, 10, 9, 9, 8 ]
[ "nonn", "tabl" ]
A108523
[ 1, 1, 2, 4, 10, 27, 77, 226, 685, 2112, 6618, 20996, 67337, 217884, 710571, 2332958, 7705429, 25584035, 85346018, 285908169, 961440343, 3244259406, 10981797187, 37280278698, 126890974820, 432950169885, 1480542159038, 5073504809660 ]
[ "nonn" ]
A202872
[ 1, -1, 1, -11, 1, 1, -46, 37, -1, 1, -181, 298, -112, 1, 1, -716, 1784, -1368, 308, -1, 1, -2851, 9495, -11119, 5286, -828, 1, 1, -11386, 47431, -74940, 55235, -18546, 2189, -1, 1, -45521, 227592, -453206, 455080, -239360, 61185, -5759 ]
[ "tabl", "sign" ]
A194697
[ 4, 4, 8, 12, 16, 16, 22, 32, 26, 20, 24, 40, 44, 52, 48, 72, 42, 20, 24 ]
[ "nonn", "more" ]
A061169
[ 1, 39, 315, 1687, 7470, 29634, 109421, 384105, 1298613, 4264835, 13686456, 43102644, 133636825, 408900987, 1237114335, 3706490479, 11010661266, 32463981270, 95081107013, 276820695645, 801633669561 ]
[ "nonn", "easy" ]
A335030
[ 3, 9, 10, 44, 70, 102, 350, 372, 1608, 3492, 6096, 10380, 44040, 100260, 180240, 425160, 1744560, 2425080, 5509980, 10048080, 23614920, 97639920, 396315360, 900229680, 2519017200, 3113704440, 12870562320, 52307529120 ]
[ "nonn", "more" ]
A366307
[ 1, 16, 81, 625, 1296, 2401, 10000, 14641, 28561, 38416, 50625, 65536, 83521, 130321, 194481, 234256, 279841, 456976, 707281, 810000, 923521, 1048576, 1185921, 1336336, 1500625, 1874161, 2085136, 2313441, 2825761, 3111696, 3418801, 4477456, 4879681, 5308416, 6765201 ]
[ "nonn", "easy" ]
A265184
[ 1, -1, 5, -25, 185, -2125, 27905, -482605, 9217085, -213875785, 6255817445, -194304672685, 7226433462125, -297023830065085, 12785737501604944, -602104045086886500, 31987054432103158000, -1.8907732957221096e+21, 1.1539760806368486e+23 ]
[ "sign" ]
A142679
[ 23, 137, 251, 479, 593, 821, 1049, 1163, 1277, 1619, 1733, 1847, 2417, 2531, 3329, 3557, 3671, 4013, 4127, 4241, 4583, 5039, 5153, 5381, 6521, 6863, 6977, 7433, 7547, 8117, 8231, 8573, 9029, 9257, 9371, 9941, 10169, 10739, 10853, 11423, 12107, 12791, 13931 ]
[ "nonn", "easy" ]
A387700
[ 1, 1, 0, 1, 1, 1, 1, 2, 4, 8, 1, 3, 8, 21, 55, 1, 4, 13, 40, 121, 364, 1, 5, 19, 66, 221, 728, 2380, 1, 6, 26, 100, 364, 1288, 4488, 15504, 1, 7, 34, 143, 560, 2108, 7752, 28101, 100947, 1, 8, 43, 196, 820, 3264, 12597, 47652, 177859, 657800 ]
[ "nonn", "tabl" ]
A245240
[ 0, 1, -1, 1, 0, -5, 21, -59, 117, -95, -484, 3131, -11219, 28216, -40975, -49778, 630853, -2758309, 8205948, -16014181, 3933569, 135111669, -743995720, 2566032656, -6105683945, 6584104436, 26402611080, -205994058892, 825490609412, -2295266373781 ]
[ "sign", "easy" ]
A197903
[ 16, 40, 124, 327, 732, 1447, 2604, 4359, 6892, 10407, 15132, 21319, 29244, 39207, 51532, 66567, 84684, 106279, 131772, 161607, 196252, 236199, 281964, 334087, 393132, 459687, 534364, 617799, 710652, 813607, 927372, 1052679, 1190284, 1340967, 1505532, 1684807 ]
[ "nonn", "easy" ]
A205902
[ 81, 2943, 327501, 103275303, 87381878025, 193311671549253, 1103442692933402100, 1.6171078560726955e+22, 6.0715492601068574e+26 ]
[ "nonn" ]
A164364
[ 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0 ]
[ "nonn" ]
A072739
[ 0, 0, 1, 1, 2, 1, 0, 2, 3, 2, 1, 3, 4, 3, 2, 0, 2, 4, 5, 4, 3, 1, 3, 5, 6, 5, 4, 3, 0, 2, 4, 6, 7, 6, 5, 4, 1, 3, 5, 7, 8, 7, 6, 5, 4, 0, 2, 4, 6, 8, 9, 8, 7, 6, 5, 1, 3, 5, 7, 9, 10, 9, 8, 7, 6, 5, 0, 2, 4, 6, 8, 10, 11, 10, 9, 8, 7, 6, 1, 3, 5, 7, 9, 11, 12, 11, 10, 9, 8, 7, 6, 0, 2, 4, 6, 8, 10, 12, 13 ]
[ "nonn", "tabl" ]
A313379
[ 1, 5, 10, 13, 15, 22, 28, 36, 38, 37, 43, 44, 59, 64, 69, 66, 67, 73, 82, 94, 98, 95, 97, 94, 111, 116, 127, 126, 125, 127, 132, 146, 150, 153, 157, 152, 165, 166, 179, 178, 183, 187, 190, 200, 200, 205, 209, 210, 225, 224 ]
[ "nonn" ]
A154379
[ 260, 510, 760, 1010, 1260, 1510, 1760, 2010, 2260, 2510, 2760, 3010, 3260, 3510, 3760, 4010, 4260, 4510, 4760, 5010, 5260, 5510, 5760, 6010, 6260, 6510, 6760, 7010, 7260, 7510, 7760, 8010, 8260, 8510, 8760, 9010, 9260, 9510, 9760, 10010, 10260 ]
[ "nonn", "easy" ]
A378745
[ 4, 9, 125, 49, 161051, 2197, 410338673, 130321, 12167, 12200509765705828, 923521, 94931877133, 1.555098314991538e+24, 11688200277601, 10779215329, 1174711139837, 1.5413179794770735e+37, 191707312997281, 8.182718904632857e+21, 1.9118715823042429e+46, 58871586708267910 ]
[ "nonn" ]
A260482
[ 7, 13, 14, 26, 27, 28, 33, 37, 47, 52, 53, 54, 56, 57, 66, 67, 69, 71, 73, 74, 77, 87, 93, 94, 97, 103, 104, 106, 107, 108, 109, 111, 112, 113, 114, 123, 127, 132, 133, 134, 138, 139, 141, 142, 146, 147, 148, 149, 151, 153, 154, 157, 167, 173, 174, 177, 186, 187, 188, 189, 191, 193, 194, 197, 206, 207, 208, 209, 211, 212, 213, 214, 216, 217, 218, 219, 221, 222, 223, 224, 226, 227, 228 ]
[ "nonn", "frac" ]
A066329
[ 0, 1, 11, 100, 101, 1000, 1001, 1011, 1100, 1101, 1111, -1, -1, -1, -1, -1, 10000, 10001, 10011, 10100, 10101, 11000, 11001, 11011, 11100, 11101, 11111, -1, -1, -1, -1, -1, 100000, 100001, 100011, 100100, 100101, 101000, 101001, 101011, 101100, 101101, 101111, -1, -1, -1, -1, -1, 110000, 110001, 110011 ]
[ "easy", "sign" ]
A069882
[ 1, 2, 3, 4, 5, 6, 66, 666, 6666, 66666, 666666, 6666666, 66666666, 666666666, 6666666666, 66666666666, 666666666666, 6666666666666, 66666666666666, 666666666666666, 6666666666666666, 66666666666666664, 666666666666666600 ]
[ "nonn", "base", "easy" ]
A036146
[ 1, 2, 4, 8, 16, 32, 64, 128, 117, 95, 51, 102, 65, 130, 121, 103, 67, 134, 129, 119, 99, 59, 118, 97, 55, 110, 81, 23, 46, 92, 45, 90, 41, 82, 25, 50, 100, 61, 122, 105, 71, 3, 6, 12, 24, 48, 96, 53, 106, 73, 7, 14, 28 ]
[ "nonn", "easy" ]
A071555
[ 6, 36, 386, 5006, 85086, 1616616, 37182146, 1078282206, 33426748356, 1236789689136, 50708377254536, 2180460221945006, 102481630431415230, 5431526412865008000, 320460058359035460000, 1.9548063559901164e+22 ]
[ "easy", "nonn" ]
A047282
[ 1, 3, 6, 8, 10, 13, 15, 17, 20, 22, 24, 27, 29, 31, 34, 36, 38, 41, 43, 45, 48, 50, 52, 55, 57, 59, 62, 64, 66, 69, 71, 73, 76, 78, 80, 83, 85, 87, 90, 92, 94, 97, 99, 101, 104, 106, 108, 111, 113, 115, 118, 120, 122, 125, 127, 129, 132, 134, 136, 139, 141 ]
[ "nonn", "easy" ]
A141015
[ 0, 1, 2, 4, 9, 19, 41, 88, 189, 406, 872, 1873, 4023, 8641, 18560, 39865, 85626, 183916, 395033, 848491, 1822473, 3914488, 8407925, 18059374, 38789712, 83316385, 178955183, 384377665, 825604416, 1773314929, 3808901426 ]
[ "nonn", "easy" ]
A248217
[ 0, 6, 60, 504, 4080, 32736, 262080, 2097024, 16776960, 134217216, 1073740800, 8589932544, 68719472640, 549755805696, 4398046494720, 35184372056064, 281474976645120, 2251799813554176, 18014398509219840, 144115188075331580, 1152921504605798400 ]
[ "nonn", "easy" ]
A329740
[ 1, 1, 1, 1, 4, 7, 4, 10, 10, 10, 73, 196, 133, 379, 319, 379, 502, 805, 562, 1108, 13648, 51448, 51691, 115174, 140011, 178597, 203617, 329737, 292300, 456703, 456160, 608386, 633466, 898186, 823009, 39014392, 190352269, 266293795, 493345615, 834326995, 947714938 ]
[ "nonn" ]
A058830
[ 0, 0, 0, 0, 0, 0, 90, 3150, 131040, 6667920, 416593800, 31506454980, 2841125225400, 301392906637680, 37173926260360890, 5276692469017119000, 854273993613848300000, 1.5649179624703435e+23 ]
[ "nonn", "easy" ]
A083831
[ 1, 2, 8, 88, 131, 141, 232, 242, 888, 8888, 13031, 13131, 13231, 14041, 14141, 14241, 23032, 23132, 23232, 24042, 24142, 24242, 88888, 888888, 1303031, 1304031, 1313131, 1314131, 1323231, 1324231, 1403041, 1404041, 1413141, 1414141 ]
[ "base", "nonn" ]
A011165
[ 2, 4, 0, 2, 2, 4, 8, 8, 6, 7, 9, 6, 2, 8, 6, 2, 4, 6, 6, 4, 8, 4, 1, 9, 9, 7, 8, 7, 1, 9, 8, 3, 3, 0, 6, 4, 8, 8, 2, 4, 0, 5, 1, 8, 2, 3, 3, 0, 4, 6, 4, 6, 4, 5, 1, 9, 3, 6, 0, 7, 1, 7, 1, 6, 8, 3, 1, 1, 9, 3, 1, 9, 3, 2, 2, 4, 4, 8, 2, 9, 7, 7, 2, 7, 0, 6, 6, 2, 5, 2, 8, 7, 0, 5, 6, 2, 7, 0, 9 ]
[ "nonn", "cons" ]
A301300
[ 1, 5, 13, 26, 44, 66, 92, 121, 155, 195, 239, 287, 337, 392, 454, 520, 590, 661, 737, 821, 909, 1001, 1093, 1190, 1296, 1406, 1520, 1633, 1751, 1879, 2011, 2147, 2281, 2420, 2570, 2724, 2882, 3037, 3197, 3369, 3545, 3725, 3901, 4082, 4276, 4474, 4676, 4873, 5075, 5291, 5511 ]
[ "nonn" ]
A184349
[ 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 5, 6, 7, 9, 9, 9, 9, 10, 11, 11, 11, 11, 12, 13, 13, 13, 14, 16, 18, 19, 20, 21, 23, 25, 25, 25, 26, 27, 28, 28, 28, 29, 31, 33, 34, 35, 37, 39, 41, 42, 43, 45, 47, 49, 49, 50, 51, 52, 54, 55, 57, 59, 61, 63, 64, 66, 68, 70, 72, 73, 75, 77, 79 ]
[ "nonn" ]
A045466
[ 11, 13, 29, 41, 43, 53, 67, 71, 83, 97, 109, 113, 127, 137, 139, 151, 167, 179, 181, 193, 197, 211, 223, 239, 251, 263, 277, 281, 293, 307, 337, 347, 349, 379, 389, 419, 421, 431, 433, 449, 461, 463, 487, 491 ]
[ "nonn", "easy" ]
A184821
[ 2, 6, 9, 13, 16, 20, 22, 26, 29, 33, 36, 40, 43, 46, 50, 53, 57, 60, 63, 66, 70, 73, 77, 81, 83, 87, 90, 94, 97, 101, 104, 107, 110, 114, 118, 121, 125, 127, 131, 134, 138, 141, 145, 147, 151, 155, 158, 162, 165, 168, 171, 175, 178, 182, 185, 189, 191, 195, 199, 202, 206, 209, 212, 215, 219, 222, 226, 229, 232, 236, 239, 243, 246, 250, 252, 256, 259, 263, 266, 270, 273, 276, 280, 283, 287, 290, 294, 296, 300, 303, 307, 311, 314, 317, 320, 324, 327, 331, 334, 337, 340, 344, 347, 351, 355, 357, 361, 364, 368, 371, 375, 378, 381, 384, 388, 392, 395, 399, 401, 405, 408, 412, 415, 419, 421, 425, 429, 432 ]
[ "nonn" ]
A000125
[ 1, 2, 4, 8, 15, 26, 42, 64, 93, 130, 176, 232, 299, 378, 470, 576, 697, 834, 988, 1160, 1351, 1562, 1794, 2048, 2325, 2626, 2952, 3304, 3683, 4090, 4526, 4992, 5489, 6018, 6580, 7176, 7807, 8474, 9178, 9920, 10701, 11522, 12384, 13288, 14235, 15226 ]
[ "nonn", "easy", "nice" ]
A241654
[ 1, 0, 1, 1, 3, 4, 7, 10, 16, 22, 32, 43, 61, 79, 108, 138, 184, 231, 304, 378, 491, 605, 775, 954, 1212, 1485, 1868, 2283, 2856, 3477, 4315, 5246, 6473, 7839, 9613, 11618, 14167, 17054, 20688, 24827, 29984, 35847, 43073, 51337, 61425, 72939, 86905, 102871 ]
[ "nonn", "easy" ]
A199529
[ 1, 14, 168, 2212, 29750, 407946, 5662636, 79345982, 1119873360, 15897133212, 226731289148, 3246399497138, 46636478912912, 671855095655758, 9702557118121642, 140418234266554340, 2035998107250999800 ]
[ "nonn" ]
A161466
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 64, 70, 72, 75, 80, 81, 84, 90, 96, 100, 105, 108, 112, 120, 126, 128, 135, 140, 144, 150, 160, 162, 168, 175, 180, 189, 192, 200, 210, 216, 224 ]
[ "fini", "full", "nonn", "easy", "look" ]
A084357
[ 1, 1, 4, 23, 171, 1552, 16583, 203443, 2813660, 43258011, 731183365, 13466814110, 268270250977, 5744515120489, 131525839441428, 3205279987587275, 82812074976214540, 2260364854328771600, 64979726427408470000, 1.9619761549912852e+21, 6.206555149289573e+22 ]
[ "nonn" ]
A368641
[ 0, 0, 0, 1, 3, 4, 8, 9, 14, 17, 23, 21, 32, 34, 40, 43, 55, 53, 68, 67, 79, 87, 99, 92, 114, 120, 129, 132, 152, 145, 171, 169, 187, 197, 209, 203, 236, 240, 253, 251, 283, 274, 308, 307, 322, 341, 363, 347, 389, 392, 415, 421, 452, 443, 477, 475, 507, 522, 547, 522 ]
[ "nonn", "easy" ]
A224707
[ 1, 1, 3, 141 ]
[ "nonn" ]
A264677
[ 1, 2, 10, 29, 75, 201, 588, 1700, 4785, 13401, 37905, 107598, 304638, 860789, 2433555, 6885713, 19483112, 55110392, 155875521, 440924465, 1247301569, 3528321578, 9980556450, 28232081677, 79861067099, 225905953689, 639026458132 ]
[ "nonn" ]
A156914
[ 1, 1, 2, 1, 3, 6, 1, 4, 35, 20, 1, 5, 130, 1395, 70, 1, 6, 357, 33880, 200787, 252, 1, 7, 806, 376805, 75913222, 109221651, 924, 1, 8, 1591, 2558556, 6221613541, 1506472167928, 230674393235, 3432, 1, 9, 2850, 12485095, 200525284806, 1634141006295525, 267598665689058600, 1919209135381395, 12870 ]
[ "nonn", "tabl" ]
A068338
[ 1, 3, 23, 368, 8624, 324864, 15399936, 985595904, 79833268224, 8115008716800, 968747865292800, 139499692602163200, 23346005516963020000, 4.6145928693683847e+21, 1.0458834500644385e+24, 2.6774616321649626e+26, 7.694087803287002e+28 ]
[ "nonn" ]
A170206
[ 1, 5, 20, 80, 320, 1280, 5120, 20480, 81920, 327680, 1310720, 5242880, 20971520, 83886080, 335544320, 1342177280, 5368709120, 21474836480, 85899345920, 343597383680, 1374389534720, 5497558138880, 21990232555520, 87960930222080 ]
[ "nonn" ]