A366010 Number of fixed polyominoids with n cells, allowing any corner-connections and right-angled edge-connections.

3, 42, 910, 22707, 614535, 17549557, 520599612

Offset

1,1

Comments

See A365995 for further details and a table of related sequences.

Links

Table of n, a(n) for n=1..7.

Wikipedia, Polyominoid.

Index entries for sequences related to polyominoes.

Crossrefs

Cf. A365995, A366009 (free).

29th row of A366767.

Sequence in context: A355796 A336572 A366006 * A206820 A157542 A384164

Adjacent sequences: A366007 A366008 A366009 * A366011 A366012 A366013

Keyword

nonn,hard,more

Author

Pontus von Brömssen, Sep 28 2023

Extensions

a(6)-a(7) from Pontus von Brömssen, Nov 02 2025

Status

approved