A009271 - OEIS

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A009271

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

1, 2, 8, 62, 968, 9962, 557108, -202018, 851334128, 16341130322, -6757456189972, 2480221403307782, -678177401929552792, 194099813539570880762, -58073452241962644117532, 18437894946039087568249262 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	MATHEMATICA	`Exp[ Tanh[ x ]Sinh[ x ] ] ( Even Part *)`
	CROSSREFS	`Sequence in context: A006245 A202751 A191604 * A153539 A153567 A153530` `Adjacent sequences: A009268 A009269 A009270 * A009272 A009273 A009274`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.