id:A009393 - OEIS Search Results

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

+0
1

0, 1, -3, 6, -8, 5, -7, 70, -72, -1311, 1309, 49214, -49216, -2653547, 2653545, 196707438, -196707440, -19194804703, 19194804701, 2385684870742, -2385684870744, -367985503366779, 367985503366777, 68980888889771126, -68980888889771128 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Log[ 1+Tanh[ x ] ]/Exp[ x ]`
	CROSSREFS	`Sequence in context: A108369 A010621 A096416 this_sequence A077857 A011261 A104541` `Adjacent sequences: A009390 A009391 A009392 this_sequence A009394 A009395 A009396`
	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 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research