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A012961 Expansion of e.g.f. sin(arctan(x) + log(x+1)). 0
0, 2, -1, -8, 18, 50, 15, -4580, 19180, 126890, -76725, -26697200, 158352150, 2084909450, -4854010525, -695709345500, 5181906327000, 115119442831250, -487098850343625, -54146131234247000, 475896724869036250 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

EXAMPLE

2*x - 1/2!*x^2 - 8/3!*x^3 + 18/4!*x^4 + 50/5!*x^5 ...

CROSSREFS

Sequence in context: A120945 A235048 A013118 * A013124 A012966 A168244

Adjacent sequences:  A012958 A012959 A012960 * A012962 A012963 A012964

KEYWORD

sign

AUTHOR

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

EXTENSIONS

a(0) inserted and title improved by Sean A. Irvine, Jul 29 2018

STATUS

approved

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Last modified February 17 15:32 EST 2020. Contains 331998 sequences. (Running on oeis4.)