mersenneforum.org Latteral thinking puzzle
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 2004-08-17, 15:02 #1 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 101010100001012 Posts Latteral thinking puzzle Complete this finite series. 5, 1 , 2, 5 , 7,... Spoilerise the important parts of your answers.
 2004-08-20, 05:18 #2 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 5×7×311 Posts No takers? I will reveal the next element in the series.
 2004-08-21, 23:19 #3 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 5×7×311 Posts Next element is : 3 again this is a finite series. This is a lateral thinking problem, so you can never solve it with math (although math can help).
 2004-08-23, 13:16 #4 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 5·7·311 Posts There are 12 elements in this series.
 2004-08-24, 14:27 #5 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 101010100001012 Posts Obviously nobody is interested...... So here is the answer: Numeric representation of the day of the week for the first day of the month for this year.
 2004-09-01, 14:38 #6 biwema     Mar 2004 1011111012 Posts I use a shifted version of that sequence to quickly calculate the day of the wee for any day. 1, 4, 4, 0, 2, 5, 0, 3, 6, 1, 4, 6 is easy to remember 144, 025, 036, 146 Add the number of the day in the month and also 2 for 2003, 4 for 2004, 5 for 2005, 6 for 2006, 0 for 2007 calculate the result mod 7, then convert 0 for saturday, 1 for sunday, 2 for monday...

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