References to A000457

Exponential generating function: (1+3x)/(1-2x)^(7/2).
1, 10, 105, 1260, 17325, 270270, 4729725, 91891800, 1964187225, 45831035250

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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