OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..158
FORMULA
a(n) ~ exp(2*(Pi/(3*sqrt(3))-1)*n) * n^(3*n + 3).
MATHEMATICA
Table[Product[k^3+(n-k)^3, {k, 0, n}], {n, 0, 15}]
PROG
(PARI) m=3; vector(15, n, n--; prod(k=0, n, k^m + (n-k)^m)) \\ G. C. Greubel, Jan 18 2019
(Magma) m:=3; [(&*[k^m + (n-k)^m: k in [0..n]]): n in [0..15]]; // G. C. Greubel, Jan 18 2019
(Sage) m=3; [product(k^m +(n-k)^m for k in (0..n)) for n in (0..15)] # G. C. Greubel, Jan 18 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Jan 17 2019
STATUS
approved