id:A009099 - OEIS Search Results

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Expansion of cos(x)*cos(tan(x)).

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1, -2, 0, -8, 192, 20480, 1837696, 187743488, 22698672128, 3236847570944, 536307107184640, 101121059849109504, 21095686709291679744, 4655115962946721611776, 983762698552391462027264 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Cos[ x ]Cos[ Tan[ x ] ] ( Even Part *)`
	CROSSREFS	`Sequence in context: A109589 A101682 A033836 this_sequence A091041 A140415 A105819` `Adjacent sequences: A009096 A009097 A009098 this_sequence A009100 A009101 A009102`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research