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 A179778 #3 Mar 31 2012 13:21:20 %S A179778 1,4,4,5,2,5,3,6,2,1,1,4,2,1,1,4,2,1,1,4,2,5,2,1,6,8,1,4,5,3,2,5,2,2, %T A179778 5,2,1,4,4,5,2,1,1,4,2,1,1,4,2,2,5,2,5,4,4,1,1,1,1,1,1,1,1,1,1,1,1,1, %U A179778 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 %N A179778 First differences of A179777. %H A179778 A. Karttunen, <a href="/A179778/b179778.txt">Table of n, a(n) for n = 1..150</a> %F A179778 a(n) = A179777(n+1)-A179777(n). %Y A179778 Cf. A179779, and also A179773, A179833. %K A179778 nonn %O A179778 1,2 %A A179778 _Antti Karttunen_, Aug 03 2010