Number of n X 4 0..3 arrays with no column j greater than column j-1 in all rows.
A212926
Number of n X 4 0..3 arrays with no column j greater than column j-1 in all rows.
Terms
- a(0) =35a(1) =39695a(2) =14177855a(3) =4041974015
External references
- oeis: A212926