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A192573
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a(n) = Sum_{k=0..n} floor(sqrt(Bell(k)))*floor(sqrt(Bell(n-k))).
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2
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1, 2, 3, 6, 11, 24, 52, 112, 251, 574, 1347, 3242, 7996, 20202, 52245, 138200, 373640, 1031702, 2907207, 8353892, 24460864, 72931232, 221265823, 682632254, 2140211338, 6814954528, 22027143227, 72228405060, 240154754720
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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Table[Sum[Floor[Sqrt[BellB[k]]]Floor[Sqrt[BellB[n-k]]], {k, 0, n}], {n, 0, 100}]
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PROG
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(Maxima) makelist(sum(floor(sqrt(belln(k)))*floor(sqrt(belln(n-k))), k, 0, n), n, 0, 28);
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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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