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 A272180 #9 Apr 23 2016 05:49:14
%S A272180 0,2,120,11880,1860480,427518000,135970773120,57274321104000,
%T A272180 30885807297945600,20759078324729606400,17018214378110225280000,
%U A272180 16716468557742686853120000,19383353274717848149493760000,26198415087179810897268887040000,40828604361516687201839617904640000
%N A272180 a(n) = Product_{k=0..n} (n^2 + k).
%F A272180 a(n) ~ exp(1/2) * n^(2*n + 2).
%t A272180 Table[Product[n^2 + k, {k, 0, n}], {n, 0, 15}]
%t A272180 Table[n^2*Pochhammer[1 + n^2, n], {n, 0, 15}]
%Y A272180 Cf. A272163, A272179, A272237, A272238.
%K A272180 nonn,easy
%O A272180 0,2
%A A272180 _Vaclav Kotesovec_, Apr 21 2016