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A279927 Expansion of e.g.f. arctan(x)*exp(x). 1
0, 1, 2, 1, -4, 9, 110, -279, -4520, 17265, 322618, -1638031, -35226860, 223578809, 5463436134, -41639195623, -1142009233872, 10162622387809, 309463272791538, -3149754003442847, -105510576441518164, 1208991988527548137, 44200537412519181278, -563099647603189449783 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Stanislav Sykora, Table of n, a(n) for n = 0..199

EXAMPLE

atan(x)*exp(x) = x + 2*x^2/2! + x^3/3! - 4*x^4/4! + 9*x^5/5! + ...

PROG

(PARI) x='x+O('x^33); concat([0], Vec(serlaplace(atan(x)*exp(x) ) ) ) \\ Joerg Arndt, Jan 06 2017

CROSSREFS

E.g.f. of exp(x) A000012, -arctan(x) A186246.

Sequence in context: A097949 A268572 A117338 * A137634 A100229 A071949

Adjacent sequences:  A279924 A279925 A279926 * A279928 A279929 A279930

KEYWORD

sign

AUTHOR

Stanislav Sykora, Jan 06 2017

STATUS

approved

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Last modified August 22 01:16 EDT 2017. Contains 290942 sequences.