References to A000271

Sums of menage numbers.
1, 0, 0, 1, 3, 16, 96, 675, 5413, 48800, 488592, 5379333, 64595975, 840192288


3 seqfan posts

Fri Oct 29 05:35:16 CEST 2010    [seqfan] Implementing first 500 sequences in Java
Sun Feb 22 00:54:26 CET 2009    [seqfan] Re: Need help with graph sequences
Sat Feb 21 19:10:57 CET 2009    [seqfan] Re: Need help with graph sequences

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