id:A009083 - OEIS Search Results

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Expansion of cos(tan(x)^2).

+0
2

1, 0, -12, -480, -22512, -1224960, -61017792, 1438993920, 1844639547648, 677206700482560, 225542012911531008, 76252348319434383360, 26581103125260630233088, 9309180001030233433374720 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cos[ Tan[ x ]^2 ] (* Even Part *)`
	CROSSREFS	`Sequence in context: A012395 A012687 A012467 this_sequence A012681 A009168 A012460` `Adjacent sequences: A009080 A009081 A009082 this_sequence A009084 A009085 A009086`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research