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A013403 arcsinh(arcsin(x)-tan(x))=-1/3!*x^3-7/5!*x^5-47/7!*x^7+3369/9!*x^9... 0
-1, -7, -47, 3369, 571573, 88260053, 16352313521, 3805010266353, 1114309660688557, 405568733333445837, 180263147441643275337, 96121395297143070311401, 60524878000846286453504453 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MATHEMATICA

With[{nn=30}, Take[CoefficientList[Series[ArcSinh[ArcSin[x]-Tan[x]], {x, 0, nn}], x] Range[0, nn-1]!, {4, -1, 2}]] (* Harvey P. Dale, Jul 22 2019 *)

CROSSREFS

Sequence in context: A201176 A013400 A013399 * A013401 A020465 A092480

Adjacent sequences:  A013400 A013401 A013402 * A013404 A013405 A013406

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified May 25 21:44 EDT 2022. Contains 354071 sequences. (Running on oeis4.)