A012515 Expansion of e.g.f.: tanh(sinh(x)*log(x+1))=2/2!*x^2-3/3!*x^3+12/4!*x^4-40/5!*x^5...

0, 0, 2, -3, 12, -40, -50, 1449, -23016, 261288, -2548262, 22451165, -126287260, -685717968, 42875324518, -1054666581255, 20298673936688, -334720477218256, 4520234227269042, -36137161587189411

Offset

0,3

Links

Table of n, a(n) for n=0..19.

Mathematica

With[{nn=30}, CoefficientList[Series[Tanh[Sinh[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Apr 11 2018 *)

Crossrefs

Sequence in context: A012307 A012311 A012513 * A012510 A012310 A082526

Adjacent sequences: A012512 A012513 A012514 * A012516 A012517 A012518

Keyword

sign

Author

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

Extensions

First two zeros prepended and definition clarified by Harvey P. Dale, Apr 11 2018

Status

approved