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 A030306 #5 Mar 30 2012 18:56:16 %S A030306 2,3,1,3,4,1,2,1,1,4,2,4,5,1,2,1,1,3,1,1,1,2,2,1,5,2,3,1,2,5,3,5,6,1, %T A030306 2,1,1,3,1,1,1,2,2,1,4,1,1,1,2,1,1,1,1,3,2,1,2,2,3,1,6,2,3,1,2,4,1,2, %U A030306 1,3,2,2,6,3,4,1,3,6,4,6,7,1,2,1,1,3,1,1,1,2 %N A030306 Length of n-th run of 1's in A030302. %Y A030306 Cf. A003607, A056062. %K A030306 nonn %O A030306 1,1 %A A030306 _Clark Kimberling_