Number of free polyominoes with 2n-1 cells.
A210997
Number of free polyominoes with 2n-1 cells.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =108a(4) =1285a(5) =17073a(6) =238591a(7) =3426576a(8) =50107909a(9) =742624232a(10) =11123060678a(11) =168047007728
External references
- oeis: A210997