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 A144101 #6 Sep 23 2017 12:15:14 %S A144101 0,1,1,0,1,0,1,1,1,0,1,0,1,0,0,1,1,1,1,0,0,0,1,1,1,0,1,0,1,0,1,1,0,0, %T A144101 0,1,1,0,0,1,1,0,1,0,1,0,1,1,1,1,0,0,1,1,0,1,0,0,1,0,1,0,1,1,0,0,1,0, %U A144101 0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,0,0,0,0,1,1,1,0,0,0,0,0,1,1,1,1,1,1,0,1,1,0 %N A144101 Characteristic sequence for A144100. %H A144101 Antti Karttunen, <a href="/A144101/b144101.txt">Table of n, a(n) for n = 1..10000</a> %H A144101 <a href="/index/Ch#char_fns">Index entries for characteristic functions</a> %Y A144101 Cf. A007947, A144100. %K A144101 easy,nonn %O A144101 1,1 %A A144101 _Reikku Kulon_, Sep 10 2008