id:A009779 - OEIS Search Results

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

+0
2

0, 0, 2, -6, 14, -20, -36, 336, 720, -38016, 524160, -5448960, 50388480, -465903360, 5010888960, -69353625600, 1155961497600, -20593469030400, 370356373094400, -6695551947571200, 124010190839808000, -2408196729028608000 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Tanh[ Log[ 1+x ] ]*Log[ 1+x ]`
	CROSSREFS	`Sequence in context: A130800 A067262 A107369 this_sequence A086666 A032383 A014775` `Adjacent sequences: A009776 A009777 A009778 this_sequence A009780 A009781 A009782`
	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 December 3 01:16 EST 2008. Contains 151161 sequences.

AT&T Labs Research