A012918 arcsinh(arcsin(x)+sin(x))=2*x-8/3!*x^3+298/5!*x^5-29416/7!*x^7...

2, -8, 298, -29416, 5805010, -1886608616, 917162117818, -622654532107336, 562865488506452130, -653565528977071759176, 947976470998802461571146, -1679754223193478305467460648, 3570405336414257223991774221426

Offset

0,1

Links

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

Mathematica

With[{nn=30}, Take[CoefficientList[Series[ArcSinh[ArcSin[x]+Sin[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Oct 13 2013 *)

Crossrefs

Sequence in context: A285850 A009501 A013027 * A012913 A217728 A013086

Adjacent sequences: A012915 A012916 A012917 * A012919 A012920 A012921

Keyword

sign

Author

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

Status

approved