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 A179773 #3 Mar 31 2012 13:21:20 %S A179773 1,5,1,1,4,2,5,1,3,2,1,3,1,5,2,1,8,5,4,5,2,1,1,3,1,2,2,3,5,2,1,4,5,2, %T A179773 1,1,4,2,2,1,4,2,2,6,5,5,7,5,2,1,1,4,2,5,1,2,1,4,2,1,1,1,1,1,1,1,1,1, %U A179773 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 A179773 First differences of A179772. %H A179773 A. Karttunen, <a href="/A179773/b179773.txt">Table of n, a(n) for n = 1..150</a> %F A179773 a(n) = A179772(n+1)-A179772(n). %Y A179773 Cf. A179774, and also A179778, A179833. %K A179773 nonn %O A179773 1,2 %A A179773 _Antti Karttunen_, Aug 03 2010