Number A(n,k) of acyclic orientations of the complete tripartite graph K_{n,n,k}; square array A(n,k), n>=0, k>=0, read by antidiagonals.
A372254
Number A(n,k) of acyclic orientations of the complete tripartite graph K_{n,n,k}; square array A(n,k), n>=0, k>=0, read by antidiagonals.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =14a(6) =1a(7) =18a(8) =78a(9) =230a(10) =1a(11) =54a(12) =426a(13) =1902a(14) =6902a(15) =1a(16) =162a(17) =2286a(18) =15402a(19) =76110a(20) =329462a(21) =1a(22) =486a(23) =12090a(24) =122190a(25) =822954a(26) =4553166a(27) =22934774a(28) =1a(29) =1458
External references
- oeis: A372254