A013086 arcsin(arcsinh(x)+arcsin(x))=2*x+8/3!*x^3+306/5!*x^5+30312/7!*x^7...

2, 8, 306, 30312, 5993442, 1954414728, 953905703058, 650409090147432, 590608999475062722, 688945370061378414600, 1003968219388341434081778, 1787361481981953243947889000, 3817161109431432209134714003362

Offset

0,1

Links

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

Mathematica

With[{nn=30}, Take[CoefficientList[Series[ArcSin[ArcSinh[x]+ArcSin[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Jul 20 2021 *)

Crossrefs

Sequence in context: A012918 A012913 A217728 * A012536 A012541 A054943

Adjacent sequences: A013083 A013084 A013085 * A013087 A013088 A013089

Keyword

nonn

Author

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

Status

approved