A009274 - OEIS

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A009274

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

1, 1, 1, 2, 5, 32, 157, 688, 3817, 29952, 257049, 1922560, 15886125, 160364544, 1844058101, 19815696384, 218349214545, 2743045259264, 38729647296945, 538516252917760, 7468216325125589, 112957538226929664, 1882371895493492429 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Exp[ Tanh[ x ]/Cos[ x ] ]`
	CROSSREFS	`Sequence in context: A041397 A042811 A145656 * A019036 A005636 A067299` `Adjacent sequences: A009271 A009272 A009273 * A009275 A009276 A009277`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended and formatted Mar 15 1997 by Olivier Gerard.`

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Last modified February 14 22:30 EST 2012. Contains 205678 sequences.