A009725 - OEIS

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A009725

Expansion of tan(x).(1+x).

0, 1, 2, 2, 8, 16, 96, 272, 2176, 7936, 79360, 353792, 4245504, 22368256, 313155584, 1903757312, 30460116992, 209865342976, 3777576173568, 29088885112832, 581777702256640, 4951498053124096, 108932957168730112 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Tan[ x ]*(1+x)`
	CROSSREFS	`a(2n) = A009752(n), a(2n+1) = A000182(n+1).` `Sequence in context: A016120 A188115 A085542 * A053098 A194588 A175395` `Adjacent sequences: A009722 A009723 A009724 * A009726 A009727 A009728`
	KEYWORD	`nonn,easy`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`

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Last modified February 17 09:30 EST 2012. Contains 206009 sequences.