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A126449
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Row sums of triangle A126445; a(n) = Sum_{k=0..n} C( C(n+2,3) - C(k+2,3), n-k).
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4
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1, 2, 10, 163, 5945, 375819, 36233754, 4932046435, 899372990826, 211481102358562, 62283285977509563, 22451501854089680715, 9722649026348549481236, 4980474318644453218716459
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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) a(n)=sum(k=0, n, binomial(binomial(n+2, 3)-binomial(k+2, 3), n-k))
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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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