Program to find Nth term of series 1 , 6 , 17 , 34 , 56 , 86 , 121 , 162 , ... ... . | calculate Nth term of series ; Driver code
< ? php function nthTerm ( $ n ) { return 3 * pow ( $ n , 2 ) - 4 * $ n + 2 ; } $ N = 4 ; echo nthTerm ( $ N ) . " STRNEWLINE " ; ? >