id:A009611 - OEIS Search Results

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Expansion of sinh(tan(x).x).

+0
2

0, 2, 8, 216, 8896, 553120, 48069504, 5564225408, 827281160192, 153537251480064, 34761966006691840, 9422306473314752512, 3010196845995598430208, 1118714469509146379657216 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Sinh[ Tan[ x ]x ] ( Even Part *)`
	CROSSREFS	`Sequence in context: A012297 A000893 A030177 this_sequence A015176 A013345 A013343` `Adjacent sequences: A009608 A009609 A009610 this_sequence A009612 A009613 A009614`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended and signs tested Mar 15 1997 by Olivier Gerard.`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research