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 A203747 #7 Jan 09 2013 03:54:10
%S A203747 2,25,1300,666536,1866588100,40227366213200,5615962423683300000,
%T A203747 5515452582144085933300000,36695607554641784976763692852800,
%U A203747 1681984849693348507666402129737211600000
%N A203747 v(n+1)/v(n), where v=A203746.
%C A203747 See A093883 for a discussion and guide to related sequences.
%t A203747 f[j_] := Fibonacci[j]; z = 11;
%t A203747 u := Product[f[j]^2 + f[k]^2, {j, 1, k - 1}]
%t A203747 v[n_] := Product[u, {k, 2, n}]
%t A203747 Table[v[n], {n, 1, z}] (* A203746 *)
%t A203747 Table[v[n + 1]/v[n], {n, 1, z}] (* A203747 *)
%K A203747 nonn
%O A203747 1,1
%A A203747 _Clark Kimberling_, Jan 05 2012