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A002085

Expansion of sinh x / cos x.
(Formerly M4620 N1973)

+0
1

1, 1, 9, 39, 1141, 12721, 804309, 17113719, 1886573641, 65373260641, 11127809595009, 570506317184199, 138730500808639741, 9867549661639871761 (list; graph; listen)

	OFFSET	`0,3`
	REFERENCES	`Gandhi, J. M.; The coefficients of sinh x/ cos x. Canad. Math. Bull. 13 1970 305-310.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..50`
	FORMULA	`Divide A002084(n) by 4^(floor((n+1)/4)).`
	CROSSREFS	`Cf. A002084.` `Sequence in context: A124041 A126396 A075210 this_sequence A076603 A003354 A063164` `Adjacent sequences: A002082 A002083 A002084 this_sequence A002086 A002087 A002088`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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