Number of n X 3 arrays containing 3 copies of 0..n-1 avoiding the pattern down-up in every row and equal-up in every column.
A269478
Number of n X 3 arrays containing 3 copies of 0..n-1 avoiding the pattern down-up in every row and equal-up in every column.
Terms
- a(0) =1a(1) =14a(2) =574a(3) =36028a(4) =3572724a(5) =548242672a(6) =121353398100
External references
- oeis: A269478