Number of n X n 0..2 arrays with row sums 6 and column sums 6.

A172627

Number of n X n 0..2 arrays with row sums 6 and column sums 6.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =282a(4) =628080a(5) =3680774301

External references