A077855 - OEIS

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A077855

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

1, 3, 6, 11, 20, 36, 64, 113, 199, 350, 615, 1080, 1896, 3328, 5841, 10251, 17990, 31571, 55404, 97228, 170624, 299425, 525455, 922110, 1618191, 2839728, 4983376, 8745216, 15346785, 26931731, 47261894, 82938843, 145547524, 255418100, 448227520, 786584465 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`a(n)=A005251(n+4)-1. a(n+1)-a(n) = A005314(n+2). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 19 2008]`
	CROSSREFS	`Cf. A018918. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 19 2008]` `Sequence in context: A182845 A055417 A018918 * A054887 A019302 A119861` `Adjacent sequences: A077852 A077853 A077854 * A077856 A077857 A077858`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002`

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.