id:A009080 - OEIS Search Results

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Expansion of cos(tan(x).x).

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1, 0, -12, -240, -5936, -155520, -65472, 981903104, 223580862720, 46255608778752, 10060678641587200, 2368138744630923264, 601490101481648443392, 161192778898870464512000, 43208403753541588946141184 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cos[ Tan[ x ]x ] ( Even Part *)`
	CROSSREFS	`Adjacent sequences: A009077 A009078 A009079 this_sequence A009081 A009082 A009083` `Sequence in context: A012538 A006588 A009150 this_sequence A002166 A034910 A091745`
	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 May 16 01:24 EDT 2008. Contains 139630 sequences.

AT&T Labs Research