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 A038741 #6 Mar 30 2012 18:56:32 %S A038741 1,11,68,313,1201,4082,12761,37633,106573,293526,793453,2118657, %T A038741 5612906,14797581,38896117,102061314,267532982,700883736,1835598926, %U A038741 4806570842,12585001630,32949618088,86265413414,225848657954 %N A038741 T(n,n-4), array T as in A038738. %F A038741 G.f.: x^4/[(1-3x+x^2)(1-x)^8]. %K A038741 nonn %O A038741 4,2 %A A038741 _Clark Kimberling_, May 02 2000