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A009768 Expansion of tanh(exp(x).x). 0
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.