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A365653
Number of fixed n-polyominoids, allowing corner-connections only.
4
3, 30, 554, 12453, 308313, 8055534
OFFSET
1,1
CROSSREFS
Cf. A075678 (polyominoids, edge-connections only), A365651 (corner- and edge-connections), A365652 (free).
27th row of A366767.
Sequence in context: A080527 A370057 A300617 * A301663 A319940 A177449
KEYWORD
nonn,hard,more
AUTHOR
STATUS
approved