Number of 3 X n 0..n-1 arrays with no column j greater than column j-1 in all rows.
A212932
Number of 3 X n 0..n-1 arrays with no column j greater than column j-1 in all rows.
Terms
- a(0) =1a(1) =63a(2) =18226a(3) =14177855a(4) =23124921876
External references
- oeis: A212932