Number of n X n 0..2 arrays with row sums 5 and column sums 5.

A172625

Number of n X n 0..2 arrays with row sums 5 and column sums 5.

Terms

    a(0) =0a(1) =0a(2) =6a(3) =1344a(4) =1084851a(5) =2030271480

External references