A012651 Expansion of e.g.f. arcsin(tanh(x) * log(x+1)).

0, 0, 2, -3, 0, -10, 280, -2016, 7728, -50184, 1167808, -18442600, 185678240, -1830386064, 35948019952, -830271781080, 14637146499584, -224802165350848, 4566858920948736, -123373361063129472

Offset

0,3

Links

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

Example

2/2!*x^2 - 3/3!*x^3 - 10/5!*x^5 + 280/6!*x^6 ...

Crossrefs

Sequence in context: A012402 A177700 A012654 * A012401 A012398 A012652

Adjacent sequences: A012648 A012649 A012650 * A012652 A012653 A012654

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