Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.
A251242
Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.
Terms
- a(0) =75a(1) =14265a(2) =20904689a(3) =236035946835
External references
- oeis: A251242