Triangle read by rows: T(n,k) is the number of free polyominoes with n cells whose difference between length and width is k, n >= 1, k >= 0.
A379625
Triangle read by rows: T(n,k) is the number of free polyominoes with n cells whose difference between length and width is k, n >= 1, k >= 0.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =1a(7) =3a(8) =0a(9) =1a(10) =6a(11) =2a(12) =3a(13) =0a(14) =1a(15) =7a(16) =16a(17) =6a(18) =5a(19) =0a(20) =1a(21) =25a(22) =39a(23) =27a(24) =11a(25) =5a(26) =0a(27) =1a(28) =80a(29) =120
External references
- oeis: A379625