Triangle read by rows: T(n,k) = number of free hexagonal polyominoes with n cells, where the maximum number of cells on any lattice line is k. The term "lattice line" here means a line running through the cell centers and midpoints of their sides.
A378014
Triangle read by rows: T(n,k) = number of free hexagonal polyominoes with n cells, where the maximum number of cells on any lattice line is k. The term "lattice line" here means a line running through the cell centers and midpoints of their sides.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =1a(6) =0a(7) =4a(8) =2a(9) =1a(10) =0a(11) =3a(12) =15a(13) =3a(14) =1a(15) =0a(16) =5a(17) =50a(18) =23a(19) =3a(20) =1a(21) =0a(22) =1a(23) =171a(24) =126a(25) =30a(26) =4a(27) =1a(28) =0a(29) =1
External references
- oeis: A378014