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 A115846 #2 Mar 31 2012 13:21:10 %S A115846 0,1,10,11,100,101,110,111,1000,1010,1100,1110,10000,10001,10100, %T A115846 10101,11000,11100,100000,100001,100010,100011,101000,101010,110000, %U A115846 110001,111000,1000000,1000001,1000010,1000011,1000100,1000101 %N A115846 Sequence A115845 in binary. %Y A115846 Cf. a(n) = A007088(A115845(n)). %K A115846 nonn,base %O A115846 0,3 %A A115846 _Antti Karttunen_, Feb 01 2006