The number of rectangular free polyominoes with n cells where no 4 cells meet at a point.
A326301
The number of rectangular free polyominoes with n cells where no 4 cells meet at a point.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =8a(4) =19a(5) =54a(6) =159a(7) =511a(8) =1676a(9) =5685a(10) =19512
External references
- oeis: A326301