T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal.
A233408
T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal.
Terms
- a(0) =9a(1) =11a(2) =11a(3) =22a(4) =37a(5) =22a(6) =24a(7) =35a(8) =35a(9) =24a(10) =41a(11) =100a(12) =211a(13) =100a(14) =41a(15) =42a(16) =265a(17) =360a(18) =360a(19) =265a(20) =42a(21) =66a(22) =293a(23) =1461a(24) =1907a(25) =1461a(26) =293a(27) =66a(28) =65a(29) =756
External references
- oeis: A233408