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 A081776 #5 Mar 30 2012 18:39:16 %S A081776 1,7,1,7,8,7,1,7,7,1,7,7,1,6,1,7,7,1,7,8,7,1,7,7,1,6,1,7,8,7,1,7,7,1, %T A081776 6,1,7,7,1,7,7,1,7,8,7,1,7,7,1,6,1,7,8,7,1,7,7,1,7,7,1,6,1,7,7,1,7,8, %U A081776 7,1,6,1,7,7,1,7,8,7,1,7,7,1,6,1,7,7,1,7,7,1,7,8,7,1,7,7,1,6,1,7,8,7,1,7,7 %N A081776 Continued fraction for sum(k>=0,1/8^(2^k-1)). %C A081776 Contains only elements 1<=a(n)<=8 ( but 2,3,4 and 5 never occur) %Y A081776 Cf. A004200. %K A081776 cofr,nonn %O A081776 1,2 %A A081776 _Benoit Cloitre_, Apr 10 2003