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 A081774 #5 Mar 30 2012 18:39:16 %S A081774 1,5,1,5,6,5,1,5,5,1,5,5,1,4,1,5,5,1,5,6,5,1,5,5,1,4,1,5,6,5,1,5,5,1, %T A081774 4,1,5,5,1,5,5,1,5,6,5,1,5,5,1,4,1,5,6,5,1,5,5,1,5,5,1,4,1,5,5,1,5,6, %U A081774 5,1,4,1,5,5,1,5,6,5,1,5,5,1,4,1,5,5,1,5,5,1,5,6,5,1,5,5,1,4,1,5,6,5,1,5,5 %N A081774 Continued fraction for sum(k>=0,1/6^(2^k-1)). %C A081774 Contains only elements 1<=a(n)<=6 ( but 2 and 3 never occur) %Y A081774 Cf. A004200. %K A081774 cofr,nonn %O A081774 1,2 %A A081774 _Benoit Cloitre_, Apr 10 2003