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A368720
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a(n) = Product_{j=1..n, k=1..n} (j^3 + k^3 + n^3).
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3
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OFFSET
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0,2
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LINKS
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FORMULA
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Limit_{n->oo} a(n)^(1/(n^2)) / n^3 = exp(Integral_{x=0..1, y=0..1} log(x^3 + y^3 + 1) dy dx) = 1.4501318426779115107161463152054835452511102493859148975306452...
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MATHEMATICA
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Table[Product[j^3 + k^3 + n^3, {j, 1, n}, {k, 1, n}], {n, 0, 6}]
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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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