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Search: id:A143633
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| A143633 |
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E.g.f. satisfies: A(x) = exp(x*A(((x+1)^2-1)/2)). |
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+0
2
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| 1, 1, 3, 19, 185, 2541, 45787, 1037359, 28649553, 942585625, 36294146171, 1612599520599, 81729515092777, 4679679856932133, 300257015404355115, 21436580394615666991, 1692530428442960006753, 146987828523665177048241
(list; graph; listen)
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OFFSET
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0,3
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MAPLE
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A:= proc(n, k::nonnegint) option remember; if n<=0 or k=0 then 1 else A(n-1, k)(((x+1)^k-1)/k) fi; unapply (convert (series (exp (x*%), x, n+1), polynom), x) end: a:= n-> coeff (A(n, 2)(x), x, n)*n!: seq (a(n), n=0..21);
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CROSSREFS
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Cf. 2nd column of A143632.
Sequence in context: A161630 A121083 A006531 this_sequence A052888 A141623 A090354
Adjacent sequences: A143630 A143631 A143632 this_sequence A143634 A143635 A143636
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KEYWORD
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nonn
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AUTHOR
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Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 27 2008
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