id:A024231 - OEIS Search Results

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

+0
1

0, 1, -2, -21, -228, 5077, 631834, 37060863, 791278008, -198249695063, -43572627802442, -5264284574193645, -189769141997109804, 100566175129622055037, 26413749605638836403666 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Tanh[ Tan[ x ] ]Sin[ x ]/2 ( Even Part *)`
	CROSSREFS	`A009811.` `Sequence in context: A099748 A023812 A062813 this_sequence A069717 A036679 A134490` `Adjacent sequences: A024228 A024229 A024230 this_sequence A024232 A024233 A024234`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs 03/97.`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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