A365996 Number of fixed polyominoids with n cells, allowing flat corner-connections and right-angled edge-connections.

3, 18, 182, 2211, 29787, 427249

Offset

1,1

Comments

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

Links

Table of n, a(n) for n=1..6.

Wikipedia, Polyominoid.

Index entries for sequences related to polyominoes.

Crossrefs

Cf. A365995 (free).

21st row of A366767.

Sequence in context: A132853 A259666 A323502 * A326088 A084879 A141118

Adjacent sequences: A365993 A365994 A365995 * A365997 A365998 A365999

Keyword

nonn,hard,more

Author

Pontus von Brömssen, Sep 26 2023

Status

approved