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 A365998 #12 Dec 04 2023 16:44:08 %S A365998 3,24,296,4248,66768,1113395 %N A365998 Number of fixed polyominoids with n cells, allowing flat corner-connections and any edge-connections. %H A365998 Wikipedia, <a href="https://en.wikipedia.org/wiki/Polyominoid">Polyominoid</a>. %H A365998 <a href="/index/Pol#polyominoes">Index entries for sequences related to polyominoes</a>. %Y A365998 See A365995 for further details and a table of related sequences. %Y A365998 Cf. A365997 (free). %Y A365998 22nd row of A366767. %K A365998 nonn,hard,more %O A365998 1,1 %A A365998 _Pontus von Brömssen_, Sep 26 2023