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A013057 sin(sinh(x)+arctan(x))=2*x-9/3!*x^3+97/5!*x^5-3647/7!*x^7... 0
2, -9, 97, -3647, 232345, -22882827, 3272680621, -637916495327, 162606798592913, -52505736635681875, 20944212007429454773, -10113746586163575672327, 5814258990406275572824793 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

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

MATHEMATICA

With[{nn=30}, Take[CoefficientList[Series[Sin[Sinh[x]+ArcTan[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, May 18 2020 *)

CROSSREFS

Sequence in context: A111847 A013132 A317275 * A237929 A227258 A027686

Adjacent sequences:  A013054 A013055 A013056 * A013058 A013059 A013060

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified July 27 18:27 EDT 2021. Contains 346308 sequences. (Running on oeis4.)