id:A009082 - OEIS Search Results

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Expansion of cos(tan(x)/cosh(x)).

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1, -1, 5, -157, 3817, -257049, 15886125, -1844058101, 218349214545, -38729647296945, 7468216325125589, -1882371895493492429, 533348579359954590009, -181834605583994802568393 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cos[ Tan[ x ]/Cosh[ x ] ] (* Even Part *)`
	CROSSREFS	`Sequence in context: A015019 A032391 A139978 this_sequence A088694 A085330 A136368` `Adjacent sequences: A009079 A009080 A009081 this_sequence A009083 A009084 A009085`
	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 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research