Number of n X n 0..4 arrays with row sums 5 and column sums 5.

A172809

Number of n X n 0..4 arrays with row sums 5 and column sums 5.

Terms

    a(0) =0a(1) =4a(2) =189a(3) =36840a(4) =21107931a(5) =29990997180

External references