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A024330 Expansion of tanh(ln(1+x)).ln(1+x)/2. +0
1
0, 0, 1, -3, 7, -10, -18, 168, 360, -19008, 262080, -2724480, 25194240, -232951680, 2505444480, -34676812800, 577980748800, -10296734515200, 185178186547200, -3347775973785600, 62005095419904000, -1204098364514304000 (list; graph; listen)
OFFSET

0,4

MATHEMATICA

Tanh[ Log[ 1+x ] ]*Log[ 1+x ]/2

CROSSREFS

A009779.

Sequence in context: A042435 A042591 A098001 this_sequence A069153 A167390 A000223

Adjacent sequences: A024327 A024328 A024329 this_sequence A024331 A024332 A024333

KEYWORD

sign

AUTHOR

R. H. Hardin (rhhardin(AT)att.net)

EXTENSIONS

Extended with signs 03/97.

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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