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A013228 arcsinh(log(x+1)-arcsin(x))=-1/2!*x^2+1/3!*x^3-6/4!*x^4+15/5!*x^5... 0
-1, 1, -6, 15, -105, 390, -3500, 15785, -188685, 946350, -15864750, 90057825, -2127610485, 15254857800, -444774915000, 4213468013625, -130378398500025, 1538133793366950, -48054409884965250 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..18.

CROSSREFS

Sequence in context: A029765 A068128 A013222 * A133472 A213873 A219771

Adjacent sequences:  A013225 A013226 A013227 * A013229 A013230 A013231

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified May 22 19:14 EDT 2013. Contains 225562 sequences.