A012334 - OEIS

A012334

arcsinh(arcsin(x)*sin(x))=2/2!*x^2-80/6!*x^6+1344/8!*x^8+256768/10!*x^10...

2, 0, -80, 1344, 256768, 478720, -2027088128, 273426399232, 158140462424064, -1238001757208576, -9930099869342171136, 4752907831646575394816, 4870481397825377085751296

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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]!, {3, -1, 2}]] (* Harvey P. Dale, Jul 21 2023 *)

CROSSREFS

Sequence in context: A215880 A030129 A012647 * A012451 A012447 A136558

Adjacent sequences: A012331 A012332 A012333 * A012335 A012336 A012337

KEYWORD

sign

AUTHOR

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

STATUS

approved