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 A038734 #6 Mar 30 2012 18:56:32 %S A038734 1,12,80,393,1594,5676,18437,56070,162643,456169,1249622,3368279, %T A038734 8981185,23778766,62674883,164736197,432269179,1133152915,2968751841, %U A038734 7775322683,20360324313,53309942401,139575355815,365424013769 %N A038734 T(n,n-5), array T as in A038730. %F A038734 G.f.: x^5/[(1-3x+x^2)(1-x)^9]. %K A038734 nonn %O A038734 5,2 %A A038734 _Clark Kimberling_, May 02 2000