id:A009186 - OEIS Search Results

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

+0
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1, -1, 2, -6, 16, -72, 328, -1848, 11712, -81088, 638720, -5318016, 49459840, -483162240, 5159926528, -57865303296, 697030680576, -8815813734400, 118233272496128, -1662921003208704, 24578235697610752, -380141599264751616 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cosh[ x ]/Exp[ Tan[ x ] ]`
	CROSSREFS	`Sequence in context: A009386 A009605 A009681 this_sequence A009328 A009346 A009367` `Adjacent sequences: A009183 A009184 A009185 this_sequence A009187 A009188 A009189`
	KEYWORD	`sign,easy`
	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 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research