A013225 Expansion of e.g.f. arctan(log(x+1) - arcsin(x)).

0, 0, -1, 1, -6, 15, -90, 285, -1960, 2275, -20160, -739125, 5484600, -142631775, 978257280, -20452770975, 62899668000, -1760322929625, -37787340240000, 438469128896175, -27777038217435000, 392637961158139125

Offset

0,5

Links

Table of n, a(n) for n=0..21.

Example

-1/2!*x^2 + 1/3!*x^3 - 6/4!*x^4 + 15/5!*x^5 ...

Crossrefs

Sequence in context: A220360 A096565 A013229 * A138547 A262327 A264413

Adjacent sequences: A013222 A013223 A013224 * A013226 A013227 A013228

Keyword

sign

Author

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

Extensions

a(0)=a(1)=0 inserted and title improved by Sean A. Irvine, Aug 01 2018

Status

approved