A024259 - OEIS

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A024259

Expansion of sinh(tan(x))*sin(x)/2.

0, 1, 4, 84, 2880, 155152, 11947072, 1240929984, 166862665728, 28164532992256, 5825137200342016, 1447885245123609600, 425631502990107721728, 146006164524789598523392, 57780315705196065420230656 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Sinh[ Tan[ x ] ]Sin[ x ]/2 ( Even Part *)`
	CROSSREFS	`A009606.` `Sequence in context: A203244 A053352 A156477 * A024260 A099706 A012065` `Adjacent sequences: A024256 A024257 A024258 * A024260 A024261 A024262`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended and signs tested 03/97.`

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.