T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
A251088
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
Terms
- a(0) =27a(1) =83a(2) =83a(3) =192a(4) =284a(5) =192a(6) =420a(7) =616a(8) =616a(9) =420a(10) =872a(11) =1306a(12) =1165a(13) =1306a(14) =872a(15) =1782a(16) =2534a(17) =2362a(18) =2362a(19) =2534a(20) =1782a(21) =3593a(22) =4848a(23) =4379a(24) =4718a(25) =4379a(26) =4848a(27) =3593a(28) =7215a(29) =9086
External references
- oeis: A251088