id:A131885 - OEIS Search Results

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a(n) = 4a(n-1)-6a(n-2)+4a(n-3), n > 3; a(0) = 1, a(1) = 2, a(2) = 4, a(3) = 6.

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1, 2, 4, 6, 8, 12, 24, 56, 128, 272, 544, 1056, 2048, 4032, 8064, 16256, 32768 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`Binomial transform of 1, 1, 1, -1.` `G.f.: (-1+2x-2x^2+2x^3)/(2x-1)/(2x^2-2x+1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 14 2007`
	CROSSREFS	`Sequence in context: A126907 A118563 A001217 this_sequence A087443 A036035 A063008` `Adjacent sequences: A131882 A131883 A131884 this_sequence A131886 A131887 A131888`
	KEYWORD	`nonn`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Oct 25 2007`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.