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 A084524 #4 Jul 29 2017 12:39:47 %S A084524 111,111,1011,111,1011,1101,111,10011,1011,111,10011,1101,111,1011, %T A084524 1101,1110,111,1011,10101,1110,111,10011,1011,1101,111,10011,1101, %U A084524 1110,111,10011,11001,1101,111,10011,11001,1110,111,100011,10011,1011,111,100011 %N A084524 Sequence A084523 in binary. %F A084524 a(n) = A007088(A084523(n)). %K A084524 nonn %O A084524 0,1 %A A084524 _Antti Karttunen_, Jun 02 2003