id:A009263 - OEIS Search Results

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Expansion of exp(tanh(x)).x.

+0
1

0, 1, 2, 3, -4, -35, -18, 679, 2200, -18567, -150150, 587499, 11618004, -9780459, -1078005082, -2502478065, 118928710576, 742659420913, -15184771406478, -178572619407021, 2148536703814700, 44455465546363725 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`n * A003723(n-1). - Ralf Stephan (ralf(AT)ark.in-berlin.de), Sep 01 2003`
	MATHEMATICA	`Exp[ Tanh[ x ] ]*x`
	CROSSREFS	`Sequence in context: A028355 A074920 A102842 this_sequence A084314 A078394 A037326` `Adjacent sequences: A009260 A009261 A009262 this_sequence A009264 A009265 A009266`
	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 25 20:09 EST 2009. Contains 167514 sequences.

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