id:A009167 - OEIS Search Results

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Expansion of cosh(tan(x)/cos(x)).

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1, 1, 21, 717, 38857, 3158329, 363525789, 56250039237, 11210469917713, 2783865475754737, 840008000833503141, 302092032859131150141, 127513257396264637784281, 62381091849825754078253353 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cosh[ Tan[ x ]/Cos[ x ] ] (* Even Part *)`
	CROSSREFS	`Adjacent sequences: A009164 A009165 A009166 this_sequence A009168 A009169 A009170` `Sequence in context: A006934 A100713 A056565 this_sequence A012479 A078791 A143002`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended and signs tested Mar 15 1997 by Olivier Gerard.`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research