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 A065274 #2 May 01 2014 02:42:46 %S A065274 0,2,1,5,2,2,11,11,4,4,4,4,23,23,23,23,8,8,8,8,8,8,8,8,47,47,47,47,47, %T A065274 47,47,47,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,95,95,95,95, %U A065274 95,95,95,95,95,95,95,95,95,95,95,95,32,32,32,32,32,32,32,32,32,32,32 %N A065274 The bisection of odd terms (the <= 0 half of Z) of A065273. %K A065274 nonn %O A065274 0,2 %A A065274 _Antti Karttunen_, Oct 28 2001