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A100511
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Sum_{j=0..n} Sum_{k=0..n} binomial(n,j)*binomial(n,k)*max(j,k).
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1
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0, 3, 22, 126, 652, 3190, 15060, 69356, 313624, 1398438, 6166660, 26948548, 116888232, 503811516, 2159864392, 9216445080, 39168381488, 165864540934, 700151508324, 2947120122068, 12373581565960, 51831196048212, 216659135089496, 903925011410536
(list; graph; refs; listen; history; internal format)
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