References to A001788

n*(n+1)*2^(n-2).
0, 1, 6, 24, 80, 240, 672, 1792, 4608, 11520, 28160, 67584, 159744, 372736, 860160


1 seqfan posts

Mon Dec 12 17:20:10 CET 2011    [seqfan] Re: A086421 is duplicate of A000120 ?

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