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A012116 sinh(arcsin(arcsinh(x)))=x+1/3!*x^3+9/5!*x^5+113/7!*x^7+6993/9!*x^9... 0
1, 1, 9, 113, 6993, 171777, 45264153, 412458993, 1241225427105, -81335384742015, 102955176831541545, -22142143528417205775, 20775502075935299781105, -8945394343172069982368895 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..13.

MATHEMATICA

With[{nn=30}, Take[CoefficientList[Series[Sinh[ArcSin[ArcSinh[x]]], {x, 0, nn}], x]Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Mar 27 2012 *)

CROSSREFS

Sequence in context: A155624 A165224 A243676 * A157551 A157570 A223499

Adjacent sequences:  A012113 A012114 A012115 * A012117 A012118 A012119

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified October 20 10:00 EDT 2020. Contains 337900 sequences. (Running on oeis4.)