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 maximum of its antidiagonal elements.
A251137
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 maximum of its antidiagonal elements.
Terms
- a(0) =40a(1) =133a(2) =133a(3) =369a(4) =416a(5) =369a(6) =919a(7) =1002a(8) =1002a(9) =919a(10) =2129a(11) =2264a(12) =1997a(13) =2264a(14) =2129a(15) =4699a(16) =4786a(17) =4110a(18) =4110a(19) =4786a(20) =4699a(21) =10033a(22) =9786a(23) =8050a(24) =8008a(25) =8050a(26) =9786a(27) =10033a(28) =20947a(29) =19548
External references
- oeis: A251137