Number of 2*n X n 0..2 arrays with row sums 3 and column sums 6.

A172649

Number of 2*n X n 0..2 arrays with row sums 3 and column sums 6.

Terms

    a(0) =0a(1) =6a(2) =5881a(3) =34145664a(4) =755265546000

External references