Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = smallest permanent of any n X n (0,1) matrix with k 1's in each row and column.
A133643
Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = smallest permanent of any n X n (0,1) matrix with k 1's in each row and column.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =2a(5) =6a(6) =1a(7) =2a(8) =9a(9) =24a(10) =1a(11) =2a(12) =12a(13) =44a(14) =120a(15) =1a(16) =2a(17) =17a(18) =80a(19) =265a(20) =720a(21) =1a(22) =2a(23) =24a(24) =144a(25) =578a(26) =1854a(27) =5040a(28) =1a(29) =2
External references
- oeis: A133643