id:A077921 - OEIS Search Results

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

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2

1, -1, 4, -8, 21, -49, 120, -288, 697, -1681, 4060, -9800, 23661, -57121, 137904, -332928, 803761, -1940449, 4684660, -11309768, 27304197, -65918161, 159140520, -384199200, 927538921, -2239277041, 5406093004, -13051463048, 31509019101, -76069501249, 183648021600 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`Partial sums of sequence of signed Pell numbers (-1)^n*A000129(n). - Paul Barry (pbarry(AT)wit.ie), May 09 2003` `G.f.: 1/((1-x)(1+2x-x^2)).`
	CROSSREFS	`-a(-3-n)=A048739(n).` `Sequence in context: A006908 A061256 A097076 this_sequence A003608 A129794 A064503` `Adjacent sequences: A077918 A077919 A077920 this_sequence A077922 A077923 A077924`
	KEYWORD	`sign`
	AUTHOR	`njas, Nov 17 2002`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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