A009768 - OEIS

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A009768

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

0, 1, 2, 1, -20, -159, -594, 2465, 69560, 665665, 1593850, -67177791, -1413216540, -12990964063, 64480265318, 4811655319393, 90259507840240, 540272971703937, -20890652777843598, -798235260367432831, -12766815370452348580 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Tanh[ Exp[ x ]*x ]`
	CROSSREFS	`Sequence in context: A012932 A013163 A191719 * A051492 A164827 A200859` `Adjacent sequences: A009765 A009766 A009767 * A009769 A009770 A009771`
	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 February 17 00:09 EST 2012. Contains 205978 sequences.