Number of 2*n X n 0..4 arrays with row sums 9 and column sums 18.
A172827
Number of 2*n X n 0..4 arrays with row sums 9 and column sums 18.
Terms
- a(0) =0a(1) =0a(2) =28681
External references
- oeis: A172827
A172827
Number of 2*n X n 0..4 arrays with row sums 9 and column sums 18.