Number of nX2 arrays containing 2 copies of 0..n-1 with no element plus any horizontal, vertical or antidiagonal neighbor equal to n-1.
A266156
Number of nX2 arrays containing 2 copies of 0..n-1 with no element plus any horizontal, vertical or antidiagonal neighbor equal to n-1.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =16a(4) =1528a(5) =71328a(6) =10109856a(7) =949116288a(8) =197260755456
External references
- oeis: A266156