A009047 - OEIS

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A009047

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

1, -1, -7, 23, 1297, -6129, -894903, 829671, 1879275169, 1886150559, -7580265762535, -85001467923145, 61409100961369265, 1056714909891968687, -781355567634874555799, -25440890573992236442361 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Cos[ Sin[ x ]Cosh[ x ]] ( Even Part *)`
	CROSSREFS	`Sequence in context: A034192 A050918 A159485 * A129662 A012482 A124985` `Adjacent sequences: A009044 A009045 A009046 * A009048 A009049 A009050`
	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 17 10:57 EST 2012. Contains 206009 sequences.