id:A009181 - OEIS Search Results

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

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1, 2, 8, 8, -960, -22400, 251008, 53882624, 2088660992, -173107810304, -34807275798528, -1238452597522432, 561542864118906880, 119928087297015742464, -1488492672130035744768 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Cosh[ x ]/Cos[ Sin[ x ] ] (* Even Part *)`
	CROSSREFS	`Sequence in context: A116471 A064231 A083523 this_sequence A009666 A012346 A012649` `Adjacent sequences: A009178 A009179 A009180 this_sequence A009182 A009183 A009184`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

AT&T Labs Research