id:A133416 - OEIS Search Results

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(1/10)*(2^(4*n-3)-5^n*F(2*n-1)+L(4*n-2)), where F() = Fibonacci numbers A000045 and L() = Lucas numbers A000032.

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0, 0, 1, 91, 3060, 74613, 1562275, 30045016, 548354601, 9669627915, 166514967388, 2819214031645, 47139484522131, 780855182286336, 12842348655153745, 210042772449096763, 3420451064885308740, 55509625058510689221, 898396209147305575171, 14508414020570344661800 (list; graph; listen)

	OFFSET	`1,4`
	REFERENCES	`P. S. Bruckman, Problem H-650, Fib. Quart., 45 (2007), 91.`
	FORMULA	`Equals Sum_{k = 0..floor((n-3)/5)} binomial(4n-2, 2n-10k-6).`
	CROSSREFS	`Sequence in context: A118706 A119150 A008394 this_sequence A047697 A096054 A129965` `Adjacent sequences: A133413 A133414 A133415 this_sequence A133417 A133418 A133419`
	KEYWORD	`nonn`
	AUTHOR	`njas, Nov 27 2007`

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

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