id:A067984 - OEIS Search Results

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Convolution of L(n+1) := A000204(n+1) (Lucas), n>=0, with L(n+6), n>=0.

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18, 83, 206, 459, 940, 1844, 3504, 6513, 11902, 21465, 38302, 67752, 118974, 207631, 360430, 622791, 1071776, 1837852, 3141468, 5354445, 9102878, 15439413, 26131346, 44141904, 74433450, 125306699 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Sixth diagonal of triangle A067979. Sixth column of triangle A067990.`
	FORMULA	`a(n)= sum(L(k+1)L(n+6-k), k=0..n) = (29n+18)F(n+1)+18(n+1)F(n), with F(n) := A000045(n) (Fibonacci).` `G.f.: (18+11x)(1+2x)/(1-x-x^2)^2.`
	CROSSREFS	`Sequence in context: A043181 A039358 A043961 this_sequence A124935 A126405 A141842` `Adjacent sequences: A067981 A067982 A067983 this_sequence A067985 A067986 A067987`
	KEYWORD	`nonn,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Feb 15 2002`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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