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Search: id:A009311
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A009311 Expansion of ln(1+ln(1+tanh(x))). +0
1
0, 1, -2, 5, -19, 104, -706, 5662, -53082, 570600, -6897016, 92565296, -1366706848, 22016867248, -384226243584, 7220865546000, -145397565641296, 3122890640031488, -71266398589322368, 1722010388581604224 (list; graph; listen)
OFFSET

0,3

MATHEMATICA

Log[ 1+Log[ 1+Tanh[ x ] ] ]

CROSSREFS

Sequence in context: A054687 A076669 A093502 this_sequence A107882 A089126 A113346

Adjacent sequences: A009308 A009309 A009310 this_sequence A009312 A009313 A009314

KEYWORD

sign,easy

AUTHOR

R. H. Hardin (rhh(AT)cadence.com)

EXTENSIONS

Extended with signs Mar 15 1997 by Olivier Gerard.

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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