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

A172958

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

Terms

    a(0) =1a(1) =1a(2) =10a(3) =1540a(4) =2309384a(5) =20856798285

External references