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A092423
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Row sums of triangle A092422, which is generated from the even-numbered Fibonacci polynomials (A011973).
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1
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1, 2, 4, 9, 21, 50, 121, 297, 736, 1837, 4610, 11618, 29379, 74500, 189362, 482282, 1230460, 3144137, 8045057, 20610526, 52860253, 135707819, 348720196, 896833527, 2308229426, 5944998971, 15321681454, 39511323139, 101947848801, 263183509040, 679747862389, 1756432848707, 4540430713995
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OFFSET
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0,2
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LINKS
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PROG
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(PARI) T(n, k)=if(n<k||k<0, 0, if(k==0, 1, sum(j=0, min(k, n-k), binomial(k+j, k-j)*T(n-k, j))));
a(n)=sum(k=0, n, T(n, k));
vector(66, n, a(n-1))
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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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