id:A135094 - OEIS Search Results

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a(n)=2a(n-1)+2a(n-2)-4a(n-3).

+0
3

0, 1, 3, 8, 18, 40, 84, 176, 360, 736, 1488, 3008, 6048, 12160, 24384, 48896, 97920, 196096, 392448, 785408, 1571328, 3143680, 6288384, 12578816, 25159680, 50323456, 100651008, 201310208, 402628608, 805273600, 1610563584, 3221159936 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`O.g.f.: -3/[2(2x-1)]+(4x+3)/[2(2x^2-1)] . a(n) = 32^(n-1) - A063759(n+1)/2 . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 15 2008`
	CROSSREFS	`Cf. A026635, A026657.` `Sequence in context: A011377 A036385 A026635 this_sequence A026657 A036384 A080692` `Adjacent sequences: A135091 A135092 A135093 this_sequence A135095 A135096 A135097`
	KEYWORD	`nonn,easy`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Feb 12 2008`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 15 2008`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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