id:A009826 - OEIS Search Results

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

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1, -5, 1, -797, 1345, -785685, 33807489, -492925869, 846642059905, 79077949115227, 36210294463841281, 6194961651235041859, 2607668614681912579521, 628125063344376763784011, 293462485767782617143864449 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Tanh[ x ]Cos[ Tan[ x ] ] ( Odd Part *)`
	CROSSREFS	`Sequence in context: A162227 A075266 A094096 this_sequence A112871 A078110 A093814` `Adjacent sequences: A009823 A009824 A009825 this_sequence A009827 A009828 A009829`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research