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 A111726 #4 Apr 16 2023 21:02:42 %S A111726 4,15,78,58,67,97,101,120,110,174,160,214,239,261,557,548,1287,1274, %T A111726 1524 %N A111726 Values of m corresponding to A111227. %C A111726 The next two terms are > 1690, 1911. %Y A111726 Cf. A111227. %K A111726 nonn %O A111726 1,1 %A A111726 Lambert Klasen (lambert.klasen(AT)gmx.net), Oct 26 2005