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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
OFFSET
0,4
FORMULA
a(n) ~ (n-1)! * (-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
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved