Number of n X n 0..2 arrays with row sums 9 and column sums 9.

A172626

Number of n X n 0..2 arrays with row sums 9 and column sums 9.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =120a(5) =16214000

External references