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A272246
a(n) = Product_{k=0..n} (n^3 + k^3).
7
0, 2, 1152, 1428840, 3488808960, 15044494500000, 105235903511101440, 1119277024472896248960, 17216259547948971039129600, 368066786222106315186876633600, 10591209807103301277597696000000000, 399472472359100444604916002033020774400
OFFSET
0,2
FORMULA
a(n) ~ 2^(2*n + 1/2) * n^(3*n + 3) / exp((3 - Pi/sqrt(3))*n).
MATHEMATICA
Table[Product[n^3+k^3, {k, 0, n}], {n, 0, 12}]
KEYWORD
nonn,easy
AUTHOR
Vaclav Kotesovec, Apr 23 2016
STATUS
approved