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A067983 Convolution of L(n+1) := A000204(n+1) (Lucas), n>=0, with L(n+5), n>=0. 0
11, 51, 127, 283, 580, 1138, 2163, 4021, 7349, 13255, 23654, 41844, 73483, 128247, 222635, 384707, 662072, 1135334, 1940691, 3307865, 5623681, 9538511, 16144282, 27271848, 45987275, 77419323, 130137943 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
Fifth diagonal of triangle A067979. Fifth column of triangle A067990.
LINKS
FORMULA
a(n)= sum(L(k+1)*L(n+5-k), k=0..n) = (18*n+11)*F(n+1)+11*(n+1)*F(n), with F(n) := A000045(n) (Fibonacci).
G.f.: (11+7*x)*(1+2*x)/(1-x-x^2)^2.
CROSSREFS
Sequence in context: A266034 A026684 A181619 * A175360 A226451 A185505
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Feb 15 2002
STATUS
approved

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Last modified June 20 23:53 EDT 2024. Contains 373535 sequences. (Running on oeis4.)