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 A126971 #7 Mar 31 2012 14:43:40 %S A126971 1,1,2,5,6,8,8,2,5,6,2,5,5,3,3,2,2,3,5,6,7,8,0,8,8,4,9,1,2,7,8,0,6,4, %T A126971 5,1,1,3,1,8,9,0,3,4,9,2,7,7,3,5,9,5,7,8,9,4,6,1,1,9,7,9,0,6,5,7,0,9, %U A126971 9,8,3,7,1,3,7,0,1,2,4,1,9,1,6,7,4,4,2,0,8 %N A126971 Left border of array in A105605. %K A126971 nonn,easy %O A126971 1,3 %A A126971 _Eric Angelini_, Sep 29 2009 %E A126971 More terms from _Sean A. Irvine_, Sep 26 2011