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 A112629 #4 Jun 02 2025 00:28:20 %S A112629 9,25,49,169,225 %N A112629 Erroneous duplicate of A110284. %K A112629 dead %O A112629 1,1