A009413 - OEIS

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A009413

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

0, 1, -1, 5, -12, 69, -285, 1833, -11536, 91689, -782865, 7685325, -82339884, 973147629, -12466581309, 172666976433, -2565893101440, 40742019960785, -688062399893505, 12315242802523797, -232832786354392620 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Log[ 1+x ]*Cosh[ Sinh[ x ] ]`
	CROSSREFS	`Sequence in context: A111904 A015784 A129723 * A009429 A156236 A128323` `Adjacent sequences: A009410 A009411 A009412 * A009414 A009415 A009416`
	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 15 17:13 EST 2012. Contains 205828 sequences.