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A366000 Number of fixed polyominoids with n cells, allowing right-angled corner-connections. 3
3, 24, 344, 6024, 117756, 2453722 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Wikipedia, Polyominoid.
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 * A332975 A010791 A145169
KEYWORD
nonn,hard,more
AUTHOR
STATUS
approved

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Last modified May 28 01:34 EDT 2024. Contains 372900 sequences. (Running on oeis4.)