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A366009
Number of free polyominoids with n cells, allowing any corner-connections and right-angled edge-connections.
4
1, 3, 30, 531, 13095
OFFSET
1,2
COMMENTS
See A365995 for further details and a table of related sequences.
CROSSREFS
Cf. A365995, A366010 (fixed).
29th row of A366766.
Sequence in context: A338278 A144739 A185827 * A370910 A377554 A375871
KEYWORD
nonn,hard,more
AUTHOR
STATUS
approved