Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.
A250906
Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.
Terms
- a(0) =74a(1) =13401a(2) =18077319a(3) =181725094746
External references
- oeis: A250906