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 A031260 #8 Jan 20 2024 13:56:47 %S A031260 1,1,2,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,3,2,2,1,1,1,1,1,1,1,1,1,1,1, %T A031260 1,1,1,1,1,2,1,1,1,1,1,1,1,1,2,1,1,1,1,2,2,1,1,1,1,1,1,1,1,1,1,1,1,2, %U A031260 1,1,1,1,1,1,1,1,2,1,1 %N A031260 Length of n-th run of digit 0 in A031253. %Y A031260 Cf. A031253. %K A031260 nonn,base %O A031260 1,3 %A A031260 _Clark Kimberling_