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