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Search: id:A012506
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A012506 cosh(cos(x)*arctan(x))=1+1/2!*x^2-19/4!*x^4+445/6!*x^6-14663/8!*x^8... +0
1
1, 1, -19, 445, -14663, 718265, -50970203, 4876389557, -548752599567, 47436062951281, 12631837146241245, -15669443125044502867, 12502889747981009020841, -9927639811374322485212375 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A121938 A108145 A114350 this_sequence A081686 A003700 A093975

Adjacent sequences: A012503 A012504 A012505 this_sequence A012507 A012508 A012509

KEYWORD

sign

AUTHOR

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

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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