Number of free polyominoids with n cells, allowing flat corner-connections and right-angled edge-connections.
A365995
Number of free polyominoids with n cells, allowing flat corner-connections and right-angled edge-connections.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =66a(4) =691a(5) =9216a(6) =134325a(7) =2056012
External references
- oeis: A365995