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 A059130 #5 May 20 2014 14:52:31
%S A059130 1,2,1,3,1,2,1,2,3,2,4,2,3,2,1,2,1,3,1,2,1,3,4,3,5,3,4,3,1,2,1,3,1,2,
%T A059130 1,2,3,2,4,2,3,2,1,2,1,3,1,2,1,4,5,4,6,4,5,4,1,2,1,3,1,2,1,2,3,2,4,2,
%U A059130 3,2,1,2,1,3,1,2,1,3,4,3,5,3,4,3,1,2,1,3,1,2,1,2,3,2,4,2,3,2,1,2,1,3,1,2,1
%N A059130 A hierarchical sequence (W2{3}* - see A059126).
%H A059130 J. Wallgren, <a href="/A059126/a059126.txt">Hierarchical sequences</a>
%K A059130 easy,nonn
%O A059130 0,2
%A A059130 _Jonas Wallgren_, Jan 19 2001