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A009154 E.g.f.: Expansion of cosh(sinh(x)*log(1+x)). 0
1, 0, 0, 0, 12, -60, 450, -2940, 24080, -215712, 2245320, -25552560, 318861576, -4280157024, 61675886272, -948295464480, 15514105784320, -269094947517824, 4934169151898304, -95367032452388736, 1937946889478705792 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..20.

MATHEMATICA

With[{nn=30}, CoefficientList[Series[Cosh[Sinh[x]Log[1+x]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Jun 06 2012 *)

CROSSREFS

Sequence in context: A012315 A009062 A012308 * A012313 A012517 A012314

Adjacent sequences:  A009151 A009152 A009153 * A009155 A009156 A009157

KEYWORD

sign,easy

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997

Definition clarified by Harvey P. Dale, Jun 06 2012

STATUS

approved

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Last modified May 25 20:58 EDT 2020. Contains 334597 sequences. (Running on oeis4.)