A012323 Expansion of e.g.f.: tanh(arcsin(x)*exp(x))=x+2/2!*x^2+2/3!*x^3-16/4!*x^4-160/5!*x^5...

0, 1, 2, 2, -16, -160, -880, -824, 51648, 800960, 6435328, -2043776, -1126578176, -22272551808, -223518587136, 765475969792, 87232814768128, 2039252913397760, 22937720650260480, -211391911253512192

Offset

0,3

Links

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

Mathematica

With[{nn=20}, CoefficientList[Series[Tanh[ArcSin[x]Exp[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Dec 14 2017 *)

Crossrefs

Sequence in context: A368467 A012319 A012520 * A009804 A027607 A100680

Adjacent sequences: A012320 A012321 A012322 * A012324 A012325 A012326

Keyword

sign

Author

Patrick Demichel

Extensions

Definition clarified and zero prepended by Harvey P. Dale, Dec 14 2017

Status

approved