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A366000
Number of fixed polyominoids with n cells, allowing right-angled corner-connections.
3
3, 24, 344, 6024, 117756, 2453722
OFFSET
1,1
CROSSREFS
See A365995 for further details and a table of related sequences.
Cf. A365999 (free).
23rd row of A366767.
Sequence in context: A144003 A334775 A153389 * A375800 A332975 A010791
KEYWORD
nonn,hard,more
AUTHOR
STATUS
approved