Number of nX4 arrays of permutations of 4 copies of 0..n-1 with row sums equal, column sums equal and full-length antidiagonal sums equal to the short dimension sums.
A265116
Number of nX4 arrays of permutations of 4 copies of 0..n-1 with row sums equal, column sums equal and full-length antidiagonal sums equal to the short dimension sums.
Terms
- a(0) =1a(1) =0a(2) =6a(3) =624a(4) =6592a(5) =126764a(6) =3493730
External references
- oeis: A265116