Number of n X 4 arrays of permutations of 4 copies of 0..n-1 with no element plus any vertical neighbor equal to n-1.
A265862
Number of n X 4 arrays of permutations of 4 copies of 0..n-1 with no element plus any vertical neighbor equal to n-1.
Terms
- a(0) =1a(1) =6a(2) =1462a(3) =1584088a(4) =8616332520
External references
- oeis: A265862