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 A115824 #2 Mar 31 2012 13:21:10 %S A115824 0,11,101,110,1010,1100,10100,10101,11000,101000,101001,101010,110000, %T A115824 1001111,1010000,1010010,1010100,1010101,1100000,10011110,10100000, %U A115824 10100011,10100100,10101000,10101001,10101010,11000000,11000011 %N A115824 Sequence A115823 in binary. %Y A115824 Cf. a(n) = A007088(A115823(n)). %K A115824 nonn,base %O A115824 0,2 %A A115824 _Antti Karttunen_, Feb 01 2006