Number of n X 6 arrays of permutations of 6 copies of 0..n-1 with row sums equal.
A268366
Number of n X 6 arrays of permutations of 6 copies of 0..n-1 with row sums equal.
Terms
- a(0) =1a(1) =400a(2) =1054200a(3) =12243840000
External references
- oeis: A268366