A009826 - OEIS

This site is supported by donations to The OEIS Foundation.

A009826

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

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

	OFFSET	`0,2`
	MATHEMATICA	`Tanh[ x ]Cos[ Tan[ x ] ] ( Odd Part *)`
	CROSSREFS	`Sequence in context: A162227 A075266 A094096 * A112871 A078110 A201528` `Adjacent sequences: A009823 A009824 A009825 * A009827 A009828 A009829`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

Content is available under The OEIS End-User License Agreement .

Last modified February 14 13:08 EST 2012. Contains 205623 sequences.