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Search: id:A013006
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A013006 cosh(arctan(x)+tan(x))=1+4/2!*x^2+16/4!*x^4+544/6!*x^6+11008/8!*x^8... +0
1
1, 4, 16, 544, 11008, 1060224, 38065152, 9708670976, 276991311872, 283899182678016, -9456062364418048, 21467065808907534336, -3522630891818080796672, 3483761539375407422242816 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A061580 A037976 A013138 this_sequence A013001 A013179 A123234

Adjacent sequences: A013003 A013004 A013005 this_sequence A013007 A013008 A013009

KEYWORD

sign

AUTHOR

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

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Last modified December 4 12:27 EST 2008. Contains 151280 sequences.

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