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A067984
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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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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
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OFFSET
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0,1
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COMMENTS
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LINKS
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FORMULA
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a(n)= sum(L(k+1)*L(n+6-k), k=0..n) = (29*n+18)*F(n+1)+18*(n+1)*F(n), with F(n) := A000045(n) (Fibonacci).
G.f.: (18+11*x)*(1+2*x)/(1-x-x^2)^2.
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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