A077852 - OEIS

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A077852

Expansion of (1-x)^(-1)/(1-2*x-x^3).

1, 3, 7, 16, 36, 80, 177, 391, 863, 1904, 4200, 9264, 20433, 45067, 99399, 219232, 483532, 1066464, 2352161, 5187855, 11442175, 25236512, 55660880, 122763936, 270764385, 597189651, 1317143239, 2905050864, 6407291380, 14131726000, 31168502865, 68744297111 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`a(n)= 3 a(n-1) -2 a(n-2) + a(n-3) - a(n-4). a(n+1)-a(n)=A008998(n+1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 15 2008`
	CROSSREFS	`Cf. A019489. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 19 2008]` `Sequence in context: A045891 A081037 A019489 * A020746 A033303 A078056` `Adjacent sequences: A077849 A077850 A077851 * A077853 A077854 A077855`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002`

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Last modified February 17 11:30 EST 2012. Contains 206011 sequences.