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 A275889 #7 Dec 19 2016 05:07:29 %S A275889 1,5,1,2,2,5,1,5,1,2,2,3,4,2,2,1,6,1,4,2,2,1,5,3,2,2,4,2,1,2,5,1,4,1, %T A275889 4,4,2,1,2,4,3,2,3,1,3,3,5,1,3,1,3,5,2,1,2,5,1,2,2,4,3,4,2,2,1,5,1,4, %U A275889 1,4,1,5,1,4,1,4,2,1,2,5,1,5,1,4,2,2,1,6,1,3,1,3,5,2,3,1,3,2,4,3,2 %N A275889 First differences of A199134. %H A275889 Rémy Sigrist, <a href="/A275889/b275889.txt">Table of n, a(n) for n = 1..19097</a> %Y A275889 Cf. A199134. %K A275889 nonn %O A275889 1,2 %A A275889 _N. J. A. Sloane_, Aug 18 2016