id:A009305 - OEIS Search Results

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

+0
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0, 1, -1, 5, -18, 89, -600, 4717, -42896, 449073, -5287680, 69090581, -993391872, 15583801609, -264816161792, 4846181282685, -95022445824000, 1987373846425697, -44163232640630784, 1039121484066627877 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Log[ 1+Cosh[ x ]*x ]`
	CROSSREFS	`Sequence in context: A002826 A019046 A141733 this_sequence A097574 A113023 A127756` `Adjacent sequences: A009302 A009303 A009304 this_sequence A009306 A009307 A009308`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research