T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
A284771
T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =4a(5) =1a(6) =2a(7) =14a(8) =14a(9) =2a(10) =6a(11) =52a(12) =119a(13) =52a(14) =6a(15) =12a(16) =206a(17) =720a(18) =720a(19) =206a(20) =12a(21) =28a(22) =772a(23) =5637a(24) =10120a(25) =5637a(26) =772a(27) =28a(28) =56a(29) =2896
External references
- oeis: A284771