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 A272237 #7 Apr 23 2016 08:14:47
%S A272237 2,180,2090880,6044699520000,7151106328088486400000,
%T A272237 5159620144413185246982598164480000,
%U A272237 3167269298042065159436486399933762922086400000000,2200712918907364598767850489247066133407004510957047455416320000000
%N A272237 a(n) = Product_{k=0..n} (n^2+k)^k.
%F A272237 a(n) = ((n^2+n)!)^(n+1) / A272238(n).
%F A272237 a(n) ~ exp(n/3 + 3/8) * n^(n*(n+1)).
%t A272237 Table[Product[(n^2+k)^k, {k, 0, n}], {n, 1, 10}]
%t A272237 Table[((n^2+n)!)^(n+1) * BarnesG[n^2 + 1] / BarnesG[n^2 + n + 2], {n, 1, 10}]
%Y A272237 Cf. A272163, A272180, A272238.
%K A272237 nonn,easy
%O A272237 1,1
%A A272237 _Vaclav Kotesovec_, Apr 23 2016