A009580 - OEIS

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A009580

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

0, 1, -1, 6, -18, 115, -735, 6146, -53788, 533877, -5717925, 67138214, -852558366, 11690238495, -171896284651, 2699638432882, -45081742698840, 797695827586441, -14907737121376329, 293431115776578790 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Sinh[ Log[ 1+x ]*Cosh[ x ] ]`
	CROSSREFS	`Sequence in context: A143556 A007126 A009576 * A125839 A117813 A012758` `Adjacent sequences: A009577 A009578 A009579 * A009581 A009582 A009583`
	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 14 18:09 EST 2012. Contains 205663 sequences.