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A012651 Expansion of e.g.f. arcsin(tanh(x) * log(x+1)). 0
0, 0, 2, -3, 0, -10, 280, -2016, 7728, -50184, 1167808, -18442600, 185678240, -1830386064, 35948019952, -830271781080, 14637146499584, -224802165350848, 4566858920948736, -123373361063129472 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 31 20:40 EST 2023. Contains 359980 sequences. (Running on oeis4.)