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Search: id:A012845
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A012845 cos(sec(x)*arctanh(x))=1-1/2!*x^2-19/4!*x^4-565/6!*x^6-24743/8!*x^8... +0
1
1, -1, -19, -565, -24743, -1450985, -100090043, -5608180253, 703874231473, 601015521145391, 309193460848468125, 160230604230030181371, 91310347371287711776777, 58721857461984188996135495 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A035278 A092611 A008990 this_sequence A142023 A075879 A119555

Adjacent sequences: A012842 A012843 A012844 this_sequence A012846 A012847 A012848

KEYWORD

sign

AUTHOR

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

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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