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 A112085 #2 Mar 31 2012 14:02:21 %S A112085 1,2,2,1,4,1,2,2,1,2,2,1,4,1,2,2,1,2,2,1,2,2,1,4,1,2,2,1,2,2,1,4,1,2, %T A112085 2,1,2,2,1,2,2,1,4,1,2,2,1,2,2,1,4,1,2,2,1,4,1,2,2,1,4,1,2,2,1,2,2,1, %U A112085 4,1,2,2,1,4,1,2,2,1,4,1,2,2,1,2,2,1,4,1,2,2,1,2,2,1,2,2,1,4,1,2,2,1 %N A112085 First differences of A112055. %C A112085 Will other terms than 1, 2 or 4 ever appear? Is there genuine periodicity? %F A112085 a(n) = A112055(n+1)-A112055(n). %K A112085 nonn %O A112085 1,2 %A A112085 _Antti Karttunen_, Aug 28 2005