Number of 4Xn 0..n-1 arrays with no column j greater than column j-1 in all rows.
A212933
Number of 4Xn 0..n-1 arrays with no column j greater than column j-1 in all rows.
Terms
- a(0) =1a(1) =255a(2) =518320a(3) =4041974015
External references
- oeis: A212933