Triangle read by rows: T(n,k) is the number of non-isomorphic colorings of a toroidal n X k grid using any number of swappable colors, 1 <= k <= n.
A295197
Triangle read by rows: T(n,k) is the number of non-isomorphic colorings of a toroidal n X k grid using any number of swappable colors, 1 <= k <= n.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =3a(4) =43a(5) =2387a(6) =7a(7) =587a(8) =351773a(9) =655089857a(10) =12a(11) =11703a(12) =92197523a(15) =43a(16) =352902a(17) =37893376167a(21) =127a(22) =13639372
External references
- oeis: A295197