id:A024331 - OEIS Search Results

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Expansion of ln(1+x).ln(1+tanh(x))/2.

+0
1

0, 0, 1, -3, 7, -20, 102, -658, 4364, -32736, 293760, -2954512, 31998048, -377807040, 4885788992, -68173993856, 1016048413440, -16157627437056, 273596846948352, -4908327247431680, 92923391633776640, -1852316352709746688 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Log[ 1+x ]*Log[ 1+Tanh[ x ] ]/2`
	CROSSREFS	`A009423.` `Sequence in context: A056783 A071688 A110149 this_sequence A007174 A091184 A065496` `Adjacent sequences: A024328 A024329 A024330 this_sequence A024332 A024333 A024334`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs 03/97.`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research