A009683 - OEIS

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A009683

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

0, 2, 12, 222, 8120, 478810, 41517828, 4965965942, 783389808112, 157572900435762, 39359784790117500, 11953192658425797262, 4337232551752795660968, 1853172813592086586350218 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..13.`
	MATHEMATICA	`Tan[ Sinh[ x ] ]x ( Even Part *)`
	CROSSREFS	`Sequence in context: A083667 A092124 A009525 * A132879 A101712 A156484` `Adjacent sequences: A009680 A009681 A009682 * A009684 A009685 A009686`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin`
	EXTENSIONS	`Extended and signs tested Mar 15 1997 by Olivier Gerard.`
	STATUS	`approved`

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Last modified May 22 14:27 EDT 2013. Contains 225551 sequences.