A009687 - OEIS

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A009687

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

1, 116, 221776, 2035313216, 57114906593536, 3831406959743783936, 525282700343846052745216, 132012923141044737907744587776, 56143990156951992731353775556591616 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..8.`
	MATHEMATICA	`Tan[ Sinh[ x ]Sin[ x ] ]/2 ( [ x^(4n+2) ] *)`
	CROSSREFS	`A024347.` `Sequence in context: A284377 A009617 A201728 * A050660 A176568 A023682` `Adjacent sequences: A009684 A009685 A009686 * A009688 A009689 A009690`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin`
	EXTENSIONS	`Extended and signs tested 03/97.`
	STATUS	`approved`

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Last modified December 2 09:50 EST 2023. Contains 367517 sequences. (Running on oeis4.)