A013058 arcsin(sinh(x)+arctan(x))=2*x+7/3!*x^3+273/5!*x^5+25281/7!*x^7...

2, 7, 273, 25281, 4860585, 1520437901, 713815391573, 467486065936241, 407759612652705585, 456789179734173978453, 639216817349035080850221, 1092719494568563774636567193, 2240714632058571537628165246601

Offset

0,1

Links

Table of n, a(n) for n=0..12.

Mathematica

With[{nn=30}, Take[CoefficientList[Series[ArcSin[Sinh[x]+ArcTan[x]], {x, 0, nn}], x]Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Mar 25 2012 *)

Crossrefs

Sequence in context: A329967 A012942 A208018 * A013097 A037067 A012987

Adjacent sequences: A013055 A013056 A013057 * A013059 A013060 A013061

Keyword

nonn

Author

Patrick Demichel (patrick.demichel(AT)hp.com)

Status

approved