id:A009261 - OEIS Search Results

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

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1, 1, 1, -3, -15, 33, 513, -403, -31007, -41247, 2881089, 12404989, -376412847, -3175861439, 64825974593, 925805229229, -13951231536191, -320290449542079, 3556538162237313, 131747901365358205, -998391201911168335 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Exp[ Tanh[ Tanh[ x ] ] ]`
	CROSSREFS	`Sequence in context: A086381 A031091 A086380 this_sequence A102790 A000466 A145949` `Adjacent sequences: A009258 A009259 A009260 this_sequence A009262 A009263 A009264`
	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 November 24 14:25 EST 2009. Contains 167438 sequences.

AT&T Labs Research