id:A009298 - OEIS Search Results

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

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1, 1, 0, -2, 8, 56, -216, -2344, 12032, 168640, -1075328, -18467712, 140944000, 2863703168, -25464568832, -597301399296, 6065774456832, 161295676067840, -1842040163078144, -54752864215838720, 694620312112857088 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Exp[ x ]/Cosh[ Tanh[ x ] ]`
	CROSSREFS	`Sequence in context: A117564 A023179 A073831 this_sequence A113248 A097691 A124212` `Adjacent sequences: A009295 A009296 A009297 this_sequence A009299 A009300 A009301`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.

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