Number of nX2 arrays containing 2 copies of 0..n-1 avoiding the pattern equal-up in every row and column.
A269334
Number of nX2 arrays containing 2 copies of 0..n-1 avoiding the pattern equal-up in every row and column.
Terms
- a(0) =1a(1) =6a(2) =74a(3) =1880a(4) =80316a(5) =5141864a(6) =458608016a(7) =54247835568
External references
- oeis: A269334