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 A026607 #6 Mar 31 2017 22:48:56 %S A026607 1,2,2,1,2,1,2,1,2,1,1,2,2,1,1,2,2,1,2,1,2,1,1,2,2,1,1,2,2,1,1,2,2,1, %T A026607 2,1,2,1,1,2,2,1,1,2,2,1,2,1,2,1,2,1,1,2,2,1,2,1,1,2,2,1,1,2,2,1,1,2, %U A026607 2,1,2,1,2,1,1,2,2,1,1,2,2,1,2,1,2,1,2,1,1,2 %N A026607 Delete all 2's from A026600 and then replace each 3 with 2. %K A026607 nonn %O A026607 1,2 %A A026607 _Clark Kimberling_