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A013225 Expansion of e.g.f. arctan(log(x+1) - arcsin(x)). 0
0, 0, -1, 1, -6, 15, -90, 285, -1960, 2275, -20160, -739125, 5484600, -142631775, 978257280, -20452770975, 62899668000, -1760322929625, -37787340240000, 438469128896175, -27777038217435000, 392637961158139125 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,5
LINKS
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
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

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Last modified April 17 23:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)