id:A009166 - OEIS Search Results

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

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1, 0, 12, 240, 9296, 558720, 47965632, 5537249536, 823842474240, 153119256219648, 34710583399132160, 9416311849673895936, 3009741915237844832256, 1118809461121375449088000 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cosh[ Tan[ x ]x ] ( Even Part *)`
	CROSSREFS	`Sequence in context: A091745 A012344 A012542 this_sequence A012349 A012302 A012543` `Adjacent sequences: A009163 A009164 A009165 this_sequence A009167 A009168 A009169`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended and signs tested Mar 15 1997 by Olivier Gerard.`

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Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.

AT&T Labs Research