References to A002620

Quarter-squares: floor(n/2)*ceiling(n/2). Equivalently, floor(n^2/4).
0, 0, 1, 2, 4, 6, 9, 12, 16, 20, 25, 30, 36, 42, 49, 56, 64, 72, 81, 90, 100, 110, 121, 132


6 seqfan posts

Sat Oct 16 16:03:42 CEST 2010    [seqfan] Re: Penney's game sequences
Fri Oct 15 22:21:32 CEST 2010    [seqfan] Penney's game sequences
Tue Jan 5 19:43:34 CET 2010    [seqfan] Re: A graph counting problem
Sat Jan 2 16:36:01 CET 2010    [seqfan] Re: A graph counting problem
Sat Jul 11 18:09:06 CEST 2009    [seqfan] Re: Triplicate
Tue Mar 10 15:34:10 CET 2009    [seqfan] Something possibly OEISworthy. Wow.

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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