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 A059141 #5 May 20 2014 14:52:31
%S A059141 11,18,11,25,11,18,11,32,11,18,11,25,11,18,11,39,11,18,11,25,11,18,11,
%T A059141 32,11,18,11,25,11,18,11,46,11,18,11,25,11,18,11,32,11,18,11,25,11,18,
%U A059141 11,39,11,18,11,25,11,18,11,32,11,18,11,25,11,18,11,53,11,18,11,25,11
%N A059141 A hierarchical sequence (W2{3}*c - see A059126).
%H A059141 J. Wallgren, <a href="/A059126/a059126.txt">Hierarchical sequences</a>
%K A059141 easy,nonn
%O A059141 0,1
%A A059141 _Jonas Wallgren_, Jan 19 2001