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Search: id:A012297
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A012297 arctan(sin(x)*sin(x))=2/2!*x^2-8/4!*x^4-208/6!*x^6+13312/8!*x^8... +0
1
2, -8, -208, 13312, 161792, -138042368, 9993992192, 4147254525952, -1386315007787008, -171033573395529728, 284350624150760456192, -45336566464274820497408, -87136608072231186709086208 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A012535 A012300 A009801 this_sequence A000893 A030177 A009611

Adjacent sequences: A012294 A012295 A012296 this_sequence A012298 A012299 A012300

KEYWORD

sign

AUTHOR

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

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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