A013426 arcsinh(arcsin(x)-tanh(x))=3/3!*x^3-7/5!*x^5+497/7!*x^7-4471/9!*x^9...

3, -7, 497, -4471, 1537877, 3633797, 25642985825, 1187863670705, 1419759682006637, 193121697188029661, 200696541857404028889, 55695588453425762984841, 60791734371206895835586277

Offset

0,1

Links

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

Mathematica

With[{nn=30}, Take[CoefficientList[Series[ArcSinh[ArcSin[x]-Tanh[x]], {x, 0, nn}], x] Range[0, nn-1]!, {4, -1, 2}]] (* Harvey P. Dale, Aug 10 2024 *)

Crossrefs

Sequence in context: A128004 A281889 A086559 * A013422 A013424 A013423

Adjacent sequences: A013423 A013424 A013425 * A013427 A013428 A013429

Keyword

sign

Author

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

Status

approved