A012297 - OEIS

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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...

2, -8, -208, 13312, 161792, -138042368, 9993992192, 4147254525952, -1386315007787008, -171033573395529728, 284350624150760456192, -45336566464274820497408, -87136608072231186709086208 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	CROSSREFS	`Sequence in context: A012535 A012300 A009801 * A000893 A030177 A009611` `Adjacent sequences: A012294 A012295 A012296 * A012298 A012299 A012300`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 13:14 EST 2012. Contains 206031 sequences.