Number of (n+1)X(2+1) 0..3 arrays with nondecreasing maximum of every two consecutive values in every row and column.
A251115
Number of (n+1)X(2+1) 0..3 arrays with nondecreasing maximum of every two consecutive values in every row and column.
Terms
- a(0) =2500a(1) =64660a(2) =1494029a(3) =27945953a(4) =480842776a(5) =7521121248a(6) =111353209662
External references
- oeis: A251115