A012650 Expansion of e.g.f. sin(tanh(x) * log(x+1)).

0, 0, 2, -3, 0, -10, 40, 504, -2352, -4824, -182912, 3899720, -27876640, 234373776, -5435914640, 91625675400, -1149581257216, 18172484297792, -366469643887104, 6826755069373824, -123759250799610112

Offset

0,3

Links

Table of n, a(n) for n=0..20.

Maple

2/2!*x^2 - 3/3!*x^3 - 10/5!*x^5 + 40/6!*x^6 ...

Mathematica

With[{nn=20}, CoefficientList[Series[Sin[Tanh[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Feb 27 2023 *)

Crossrefs

Sequence in context: A012399 A012403 A012655 * A111606 A012653 A012656

Adjacent sequences: A012647 A012648 A012649 * A012651 A012652 A012653

Keyword

sign

Author

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

Extensions

a(0) and a(1) inserted and title improved by Sean A. Irvine, Jul 23 2018

Status

approved