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 A026885 #4 Mar 30 2012 18:56:11 %S A026885 1,8,46,234,1126,5280,24508,113648,529555,2488742,11824872,56879504, %T A026885 277155320,1368080730,6838288158,34588110926,176875174228, %U A026885 913577365466,4761373765578,25015666670338,132372375785294,704914546281986 %N A026885 T(2n,n+3), T given by A026769. %K A026885 nonn %O A026885 3,2 %A A026885 _Clark Kimberling_