id:A133679 - OEIS Search Results

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a(n)=7*a(n-1)+56*a(n-2) for n>=3, a(0)=1, a(1)=7, a(2)=98 .

+0
2

1, 7, 98, 1078, 13034, 151606, 1791146, 21027958, 274499882, 2910064822, 34230447146, 402576760054, 4734942360554, 59688895086202, 654979037799338, 7703431389461878, 90602845842996074, 1065612078710837686 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.: (1-7x^2)/(1-7x-56x^2) . a(n) = Sum_{k, 0<=k<=n}A122950(n,k)7^k .`
	CROSSREFS	`Sequence in context: A022008 A124092 A036293 this_sequence A051188 A113134 A092818` `Adjacent sequences: A133676 A133677 A133678 this_sequence A133680 A133681 A133682`
	KEYWORD	`easy,nonn`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Dec 31 2007`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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