

A009418


Expansion of log(1+x)*exp(sinh(x)).


0



0, 1, 1, 2, 4, 19, 11, 321, 720, 12489, 84849, 1008765, 10502700, 131502669, 1702662077, 24172986033, 364322094976, 5871664124881, 100335623138817, 1815293290581909, 34642054850289196, 695636985512560149
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OFFSET

0,4


LINKS

Table of n, a(n) for n=0..21.


FORMULA

a(n) ~ (n1)! * (1)^(n+1) * exp(sinh(1)).  Vaclav Kotesovec, Jan 23 2015


MATHEMATICA

Log[ 1+x ]*Exp[ Sinh[ x ] ]
CoefficientList[Series[E^Sinh[x]*Log[1 + x], {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Jan 23 2015 *)


CROSSREFS

Sequence in context: A009508 A275000 A290595 * A273553 A153691 A184308
Adjacent sequences: A009415 A009416 A009417 * A009419 A009420 A009421


KEYWORD

sign,easy


AUTHOR

R. H. Hardin


EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997


STATUS

approved



