A009134 - OEIS

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A009134

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

1, 0, 1, -3, 24, -120, 870, -6300, 55048, -527688, 5684640, -66667920, 850501608, -11675938560, 171892670040, -2700017534760, 45091783981312, -797817318871552, 14909393380875840, -293452734825051264 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Cosh[ Log[ 1+x ]*Cosh[ x ] ]`
	CROSSREFS	`Sequence in context: A127520 A175115 A151883 * A009137 A183900 A001089` `Adjacent sequences: A009131 A009132 A009133 * A009135 A009136 A009137`
	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 17 22:48 EST 2012. Contains 206085 sequences.