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Search: id:A012692
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A012692 sech(tanh(x)*cos(x))=1-1/2!*x^2+25/4!*x^4-1057/6!*x^6+81905/8!*x^8... +0
1
1, -1, 25, -1057, 81905, -10280289, 1887120585, -476966767617, 158890850697185, -67468163508862017, 35571148438980847225, -22799419589275221917281, 17459463801481355245128145 (list; graph; listen)
OFFSET

0,3

CROSSREFS

Sequence in context: A122142 A008844 A139163 this_sequence A066852 A123204 A012508

Adjacent sequences: A012689 A012690 A012691 this_sequence A012693 A012694 A012695

KEYWORD

sign

AUTHOR

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

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.


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