G.f.: Product_{n>=1} (1 + a(n)*x^n/n!) = exp(x).
1, 1, 2, 9, 24, 130, 720, 8505, 35840, 412776, 3628800, 42030450
2 seqfan posts
Sun Feb 15 15:53:59 CET 2009 [seqfan] Re: "A dream" of a series :-)
Sun Feb 15 14:39:13 CET 2009 [seqfan] Re: "A dream" of a series :-)
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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