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 A309832 #14 Oct 09 2019 09:51:58 %S A309832 3,5,7,14,23,41,74 %N A309832 Maximum length of a binary sequence S such that every pair of subwords of length n in S is of Hamming distance at least 2. %Y A309832 Cf. A052944, A309833. %K A309832 hard,more,nonn %O A309832 2,1 %A A309832 _Yeow Meng Chee_, Aug 19 2019