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Search: id:A012501
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A012501 cos(cos(x)*arctan(x))=1-1/2!*x^2+21/4!*x^4-645/6!*x^6+34153/8!*x^8... +0
1
1, -1, 21, -645, 34153, -2966505, 380114493, -67244074989, 15717842398417, -4694489063253585, 1744673430747688805, -789702534539438543573, 427739642844597474379833, -273184203052102765688128825 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A134499 A141265 A025752 this_sequence A027408 A020246 A006934

Adjacent sequences: A012498 A012499 A012500 this_sequence A012502 A012503 A012504

KEYWORD

sign

AUTHOR

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

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.

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