A013424 arctan(arcsin(x)-tanh(x))=3/3!*x^3-7/5!*x^5+497/7!*x^7-12031/9!*x^9...

3, -7, 497, -12031, 1828937, -78420175, 33163987313, -1847431936639, 1836279812106137, -90066800149588687, 250185010809212552449, -1037398294518312251519, 71571989564012181483901417

Offset

0,1

Links

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

Mathematica

With[{nn=30}, Take[CoefficientList[Series[ArcTan[ArcSin[x]-Tanh[x]], {x, 0, nn}], x] Range[ 0, nn-1]!, {4, -1, 2}]] (* Harvey P. Dale, Oct 14 2022 *)

Crossrefs

Sequence in context: A086559 A013426 A013422 * A013423 A199365 A153217

Adjacent sequences: A013421 A013422 A013423 * A013425 A013426 A013427

Keyword

sign

Author

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

Status

approved