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Search: id:A012817
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A012817 arcsinh(sec(x)*sinh(x))=x+3/3!*x^3+5/5!*x^5-217/7!*x^7+2505/9!*x^9... +0
1
1, 3, 5, -217, 2505, 765963, -6838195, -9335128657, 286658869905, 407628336475923, -19130907180121195, -42164783730598660297, 3124552441785986300505, 9154657902519091515622683 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A090953 A092947 A104996 this_sequence A087367 A058846 A101331

Adjacent sequences: A012814 A012815 A012816 this_sequence A012818 A012819 A012820

KEYWORD

sign

AUTHOR

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

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.

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