OFFSET
0,2
FORMULA
a(n) ~ 2*exp(sinh(1)) * n^n / exp(n). - Vaclav Kotesovec, Oct 24 2013
MATHEMATICA
With[{nn=20}, CoefficientList[Series[Exp[ArcTanh[x]+Sinh[x]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Jan 23 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved