This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A368720 #7 Jan 04 2024 08:57:03
%S A368720 1,3,69360,1522177267723200,391047538356893112890665992192000,
%T A368720 6785985430272886334677590546861463643140253138288640000000
%N A368720 a(n) = Product_{j=1..n, k=1..n} (j^3 + k^3 + n^3).
%F A368720 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...
%t A368720 Table[Product[j^3 + k^3 + n^3, {j, 1, n}, {k, 1, n}], {n, 0, 6}]
%Y A368720 Cf. A368685, A368622, A368721.
%Y A368720 Cf. A324426, A368722.
%K A368720 nonn
%O A368720 0,2
%A A368720 _Vaclav Kotesovec_, Jan 04 2024