References to A000239

Number of permutations of length n by rises.
1, 3, 8, 28, 143, 933, 7150, 62310, 607445, 6545935, 77232740, 989893248

1 seqfan posts

Fri Oct 29 05:35:16 CEST 2010    [seqfan] Implementing first 500 sequences in Java
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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