Number of 4Xn arrays containing n copies of 0..4-1 avoiding the pattern down-up in every row and column.
A269508
Number of 4Xn arrays containing n copies of 0..4-1 avoiding the pattern down-up in every row and column.
Terms
- a(0) =8a(1) =600a(2) =18332a(3) =480440a(4) =13522204a(5) =492613956a(6) =18677195738a(7) =753228526960
External references
- oeis: A269508