A009144 - OEIS

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A009144

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

1, 2, 8, 88, 2176, 78080, 4159616, 307882240, 29920681984, 3710767394816, 571523842998272, 107010484096565248, 23940179383147724800, 6306683724617339961344, 1932337463823712544620544 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	MATHEMATICA	`Cosh[ Sin[ x ] ]/Cos[ x ] (* Even Part *)`
	CROSSREFS	`Sequence in context: A083831 A134245 A141313 * A132316 A136749 A054955` `Adjacent sequences: A009141 A009142 A009143 * A009145 A009146 A009147`
	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 February 17 23:08 EST 2012. Contains 206085 sequences.