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 A025656 #5 Mar 30 2012 18:35:26 %S A025656 0,0,0,1,0,1,0,1,0,2,1,0,2,1,0,2,1,3,0,2,1,3,0,2,1,3,0,2,4,1,3,0,2,4, %T A025656 1,3,0,2,4,1,3,5,0,2,4,1,3,5,0,2,4,1,3,5,0,2,4,6,1,3,5,0,2,4,6,1,3,5, %U A025656 0,2,4,6,1,3,5,0,7,2,4,6,1,3,5,0,7,2,4,6,1,3,5,0,7,2,4,6,1,8,3,5,0,7,2,4,6,1,8,3 %N A025656 Exponent of 6 (value of j) in n-th number of form 2^i*6^j. %K A025656 nonn %O A025656 1,10 %A A025656 _David W. Wilson_