Number of (n+1)X(n+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
A251047
Number of (n+1)X(n+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
Terms
- a(0) =66a(1) =1528a(2) =10289a(3) =59215a(4) =248803a(5) =1081183a(6) =4118693a(7) =15940227a(8) =57664667a(9) =206905931a(10) =713141125a(11) =2417509205a(12) =7978402597
External references
- oeis: A251047