A009157 - OEIS

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A009157

Expansion of cosh(tan(sin(x))).

1, 1, 5, 13, -855, -38791, -747539, 59637061, 9421489105, 573991066225, -49290541346219, -20481513828195331, -2616109089676671623, 259051585957836649961, 218489079668015355338557 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Cosh[ Tan[ Sin[ x ] ] ] (* Even Part *)`
	CROSSREFS	`Sequence in context: A007540 A157250 A155185 * A153374 A012032 A121228` `Adjacent sequences: A009154 A009155 A009156 * A009158 A009159 A009160`
	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 February 15 23:53 EST 2012. Contains 205860 sequences.