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Search: id:A009420
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A009420 Expansion of ln(1+x).exp(tanh(x)). +0
1
0, 1, 1, 2, -8, -11, -19, 846, -1896, -111, -228159, 2453010, -11353440, 173733429, -3565851587, 41759789358, -501111404080, 9579604130881, -176443305192159, 2870638703204994, -53275482352387864, 1134671091039714069 (list; graph; listen)
OFFSET

0,4

MATHEMATICA

Log[ 1+x ]*Exp[ Tanh[ x ] ]

CROSSREFS

Sequence in context: A143189 A056550 A074263 this_sequence A090746 A089118 A146480

Adjacent sequences: A009417 A009418 A009419 this_sequence A009421 A009422 A009423

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 29 12:46 EST 2009. Contains 167659 sequences.


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