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 A203699 #7 Jan 14 2013 08:31:44
%S A203699 1,3,147,1114407,7930748737548,423375184354643258554908,
%T A203699 1139699897999666959110654862545153285132,
%U A203699 1110214943505579438451390880891356969725014603098351043391552
%N A203699 Vandermonde sequence using x^2 - xy + y^2 applied to the Fibonacci numbers (1,2,3,5,...F(n+1)).
%C A203699 See A093883 for a discussion and guide to related sequences.
%t A203699 f[j_] := Fibonacci[j + 1]; z = 11;
%t A203699 u[n_] := Product[f[j]^2 - f[j] f[k] + f[k]^2,
%t A203699 {j, 1, k - 1}]
%t A203699 v[n_] := Product[u[n], {k, 2, n}]
%t A203699 Table[v[n], {n, 1, z}] (* A203699 *)
%t A203699 Table[v[n + 1]/v[n], {n, 1, z}] (* A203700 *)
%K A203699 nonn
%O A203699 1,2
%A A203699 _Clark Kimberling_, Jan 04 2012