Number of 4Xn arrays containing n copies of 0..4-1 with column sums equal.
A268473
Number of 4Xn arrays containing n copies of 0..4-1 with column sums equal.
Terms
- a(0) =24a(1) =648a(2) =19584a(3) =643680a(4) =22374144a(5) =807480576a(6) =29933494272
External references
- oeis: A268473