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Search: id:A012339
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A012339 sech(arcsin(x)*sin(x))=1-12/4!*x^4+6160/8!*x^8-120960/10!*x^10... +0
1
1, 0, -12, 0, 6160, -120960, -30419136, 720079360, 289764450560, -67943999090688, -22346350979320832, 79039716551606272, -455312101897953210368, -1387404550704064289013760 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A012455 A120954 A012337 this_sequence A012448 A012338 A012453

Adjacent sequences: A012336 A012337 A012338 this_sequence A012340 A012341 A012342

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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