id:A102881 - OEIS Search Results

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Expansion of (1+x)/sqrt(1-4x^2-8x^3-4x^4).

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1, 1, 2, 6, 12, 32, 80, 200, 520, 1336, 3472, 9072, 23744, 62432, 164544, 434688, 1150944, 3052768, 8110784, 21581120, 57498496, 153378048, 409583616, 1094848768, 2929288960, 7843943680, 21020501504, 56371941888, 151276652544 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Binomial transform is A101500. Binomial transform of A102882.`
	FORMULA	`G.f.: (1+x)/sqrt((1-2x-2x^2)(1+2x+2x^2)).`
	CROSSREFS	`Adjacent sequences: A102878 A102879 A102880 this_sequence A102882 A102883 A102884` `Sequence in context: A080372 A000650 A032178 this_sequence A057579 A096610 A088808`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jan 15 2005`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

AT&T Labs Research