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A024472
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a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = (F(2), F(3), ...).
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0
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1, 2, 9, 14, 35, 57, 127, 205, 420, 680, 1334, 2158, 4101, 6636, 12335, 19958, 36473, 59015, 106435, 172215, 307306, 497232, 879564, 1423164, 2499145, 4043702, 7057077
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OFFSET
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1,2
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LINKS
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FORMULA
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Conjecture: G.f.: x*(-1-x-4*x^2-x^3+2*x^4) / ( (x^2-x-1) *(x^2+1) *(x^2+x-1)^2 ). - R. J. Mathar, Apr 27 2020
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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