A009133 - OEIS

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A009133

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

1, 0, 1, -3, 0, 0, 90, -420, 3192, -36792, 344640, -3424080, 40458792, -515760960, 6995451736, -102430659240, 1603858275328, -26656736919808, 469564051796928, -8742335523613056, 171465068564306560, -3533692765499863680 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Cosh[ Log[ 1+x ]*Cos[ x ] ]`
	CROSSREFS	`Sequence in context: A101192 A037288 A160537 * A180515 A009138 A175562` `Adjacent sequences: A009130 A009131 A009132 * A009134 A009135 A009136`
	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 13:28 EST 2012. Contains 206031 sequences.