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 A027133 #4 Mar 30 2012 18:56:14 %S A027133 1,2,4,9,23,59,155,429,1188,3298,9181,25634,71781,201569,571795, %T A027133 1639244,4702499,13500396,38790727,111555296,321100627,925086012, %U A027133 2667533646,7698716068,22238169212,64473303788,187912261301,547850119836 %N A027133 Greatest number in row n of array T given by A027113. %K A027133 nonn %O A027133 0,2 %A A027133 _Clark Kimberling_