References to A063865

Number of solutions to +- 1 +- 2 +- 3 +- ... +- n = 0.
1, 0, 0, 2, 2, 0, 0, 8, 14, 0, 0, 70, 124, 0, 0, 722, 1314, 0, 0, 8220, 15272, 0, 0, 99820

1 seqfan posts

Mon Mar 22 07:55:51 CET 2010    [seqfan] Re: Sum +-j +-(j+1) +-(j+2) ... +-i equals zero.
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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