A009390 - OEIS

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A009390

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

0, 1, 1, 0, 0, 5, 5, -56, -56, 1329, 1329, -49192, -49192, 2653573, 2653573, -196707408, -196707408, 19194804737, 19194804737, -2385684870704, -2385684870704, 367985503366821, 367985503366821, -68980888889771080, -68980888889771080 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,6`
	MATHEMATICA	`Log[ 1+Tanh[ x ] ]*Exp[ x ]`
	CROSSREFS	`Sequence in context: A196388 A073128 A189749 * A009334 A151467 A171726` `Adjacent sequences: A009387 A009388 A009389 * A009391 A009392 A009393`
	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 February 16 05:39 EST 2012. Contains 205860 sequences.