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Search: id:A012215
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A012215 arctan(atan(arcsinh(x)))=x-5/3!*x^3+137/5!*x^5-9029/7!*x^7... +0
1
1, -5, 137, -9029, 1089713, -209177605, 58539026361, -22507046465157, 11386223123252449, -7334290106238920453, 5861710212500532385641, -5692596379677558396424645, 6602985113623111671589590673 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A094808 A061453 A142294 this_sequence A012142 A012207 A134766

Adjacent sequences: A012212 A012213 A012214 this_sequence A012216 A012217 A012218

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.

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