Number of nX3 arrays containing 3 copies of 0..n-1 with no element plus any diagonal or antidiagonal neighbor equal to n-1.
A266182
Number of nX3 arrays containing 3 copies of 0..n-1 with no element plus any diagonal or antidiagonal neighbor equal to n-1.
Terms
- a(0) =1a(1) =2a(2) =88a(3) =7768a(4) =4027960a(5) =2437859280
External references
- oeis: A266182