A009244 - OEIS

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A009244

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

1, 1, 2, 6, 20, 92, 448, 2688, 17296, 127312, 1013600, 8850336, 83547584, 845380928, 9196867072, 105911556096, 1301697829120, 16814357324032, 230093807905280, 3294279618252288, 49636887216382976 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Exp[ Tan[ x ] ]/Cos[ x ]`
	CROSSREFS	`Sequence in context: A027315 A005965 A000421 * A104985 A079575 A078564` `Adjacent sequences: A009241 A009242 A009243 * A009245 A009246 A009247`
	KEYWORD	`nonn,easy`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended and signs tested Mar 15 1997 by Olivier Gerard.`

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Last modified February 17 22:48 EST 2012. Contains 206085 sequences.