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 A025519 #5 Mar 30 2012 18:35:25 %S A025519 3,3,10,19,19,19,28,28,28,28,28,28,55,55,82,82,82,82,82,82,82,82,82, %T A025519 82,460,460,460,460,460,460,460,460,460,460,460,460,460,460,460,1096, %U A025519 1096,1096,1096,1096,1096,1096,1096,1096,1096,1096,1096,1096,1096,1096,8079 %N A025519 Least k>1 such that first n terms of A022303 repeat beginning at k-th term. %K A025519 nonn %O A025519 1,1 %A A025519 _David W. Wilson_