A013118 Expansion of e.g.f. sin(tanh(x) + log(x+1)).

0, 2, -1, -8, 18, 42, 15, -3460, 16492, 16890, 286155, -12520400, 99727254, -271849550, 6922105827, -197946213020, 2348657908440, -19619328534222, 396132741200439, -9735975917400728, 156971908263615450, -2248810586848724102, 48167349073405076823, -1170896255906195317300

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Example

2*x - 1/2!*x^2 - 8/3!*x^3 + 18/4!*x^4 + 42/5!*x^5 ...

Mathematica

With[{nn=25}, Drop[CoefficientList[Series[Sin[Tanh[x] + Log[x + 1]], {x, 0, nn}], x] Range[0, nn]!]] (* Vincenzo Librandi, Jul 31 2018 *)

Prog

(PARI) x = 'x + O('x^30); concat([0], Vec(serlaplace(sin(tanh(x) + log(x+1))))) \\ Michel Marcus, Jul 31 2018

Crossrefs

Sequence in context: A235047 A120945 A235048 * A012961 A013124 A012966

Adjacent sequences: A013115 A013116 A013117 * A013119 A013120 A013121

Keyword

sign

Author

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

Extensions

a(0)=0 inserted and title improved by Sean A. Irvine, Jul 31 2018

Status

approved