id:A009813 - OEIS Search Results

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

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1, 3, 17, 147, 3265, 248259, 25402769, 2697740307, 299763466753, 36321927229443, 5149754111041937, 933794260030934547, 223162280662322953153, 65749433548871560459971 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Tanh[ Tan[ x ] ]/Cos[ x ] (* Odd Part *)`
	CROSSREFS	`Sequence in context: A138013 A052807 A080253 this_sequence A135750 A007767 A075820` `Adjacent sequences: A009810 A009811 A009812 this_sequence A009814 A009815 A009816`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended and signs tested Mar 15 1997 by Olivier Gerard.`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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