Number of n X n 0..3 matrices with all row and column sums equal.
A067211
Number of n X n 0..3 matrices with all row and column sums equal.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =340a(4) =89520a(5) =290838284
External references
- oeis: A067211
A067211
Number of n X n 0..3 matrices with all row and column sums equal.