Number of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.
A250953
Number of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.
Terms
- a(0) =2911a(1) =134456a(2) =6204344a(3) =286298344a(4) =13211127617a(5) =609622239024
External references
- oeis: A250953