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 A203708 #7 Jan 09 2013 03:49:38
%S A203708 13,986,227476,403325000,377678555920,1740121478145440,
%T A203708 3548967435637000000,30329075863614521552000,
%U A203708 1000883333324929677220000000,5056913952254846124761000000000,240257191158612376782675694149760000
%N A203708 v(n+1)/v(n), where v=A203707.
%C A203708 See A093883 for a discussion and guide to related sequences.
%t A203708 f[j_] := Prime[j]; z = 11;
%t A203708 u := Product[f[j]^2 + f[k]^2, {j, 1, k - 1}]
%t A203708 v[n_] := Product[u, {k, 2, n}]
%t A203708 Table[v[n], {n, 1, z}] (* A203707 *)
%t A203708 Table[v[n + 1]/v[n], {n, 1, z}] (* A203708 *)
%K A203708 nonn
%O A203708 1,1
%A A203708 _Clark Kimberling_, Jan 05 2012