A009044 - OEIS

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A009044

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

1, -2, 16, -248, 6336, -244480, 13409408, -999327488, 97590304768, -12120423043072, 1867576863899648, -349745166753398784, 78248003933970006016, -20613585750577859067904, 6315933020629432945606656 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	MATHEMATICA	`Cos[ Sin[ x ] ]/Cosh[ x ] (* Even Part *)`
	CROSSREFS	`Sequence in context: A012457 A138764 A009833 * A019318 A090727 A108242` `Adjacent sequences: A009041 A009042 A009043 * A009045 A009046 A009047`
	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 05:45 EST 2012. Contains 205694 sequences.