

A009598


Expansion of e.g.f. sinh(sinh(x))*exp(x).


1



0, 1, 2, 5, 12, 37, 118, 457, 1816, 8169, 37354, 188685, 974372, 5497741, 31769182, 197920145, 1259350576, 8541537105, 59073098706, 432381471509, 3226127944764, 25340238127989, 202778723085382, 1699894200469849
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OFFSET

0,3


LINKS

Matthew House, Table of n, a(n) for n = 0..591


FORMULA

E.g.f.: sinh(sinh(x))*exp(x).


MATHEMATICA

CoefficientList[Series[Sinh[Sinh[x]] * Exp[x], {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Oct 18 2015 *)


PROG

(PARI) x='x+O('x^33); concat(0, Vec(serlaplace(sinh(sinh(x))*exp(x)))) \\ Michel Marcus, Oct 17 2015


CROSSREFS

Sequence in context: A267400 A052302 A280275 * A002216 A024717 A003724
Adjacent sequences: A009595 A009596 A009597 * A009599 A009600 A009601


KEYWORD

nonn,easy


AUTHOR

R. H. Hardin


EXTENSIONS

Extended and signs tested by Olivier Gérard, Mar 15 1997


STATUS

approved



