id:A099025 - OEIS Search Results

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Expansion of 1 / [(1+x) * (1-5x+x^2)].

+0
4

1, 4, 20, 95, 456, 2184, 10465, 50140, 240236, 1151039, 5514960, 26423760, 126603841, 606595444, 2906373380, 13925271455, 66719983896, 319674648024, 1531653256225, 7338591633100, 35161304909276, 168467932913279 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`(1/7) [A030221(n+2) - A003501(n+2) + (-1)^n].`
	CROSSREFS	`First differences of A089927. First differences are in A003769 and A005386. Pairwise sums are in A004253.` `Sequence in context: A070733 A166175 A094971 this_sequence A008353 A057087 A151254` `Adjacent sequences: A099022 A099023 A099024 this_sequence A099026 A099027 A099028`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan, Sep 26 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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