Number of 2Xn 0..n arrays with every repeated value in every row and column greater than the previous repeated value.

A268206

Number of 2Xn 0..n arrays with every repeated value in every row and column greater than the previous repeated value.

Terms

    a(0) =4a(1) =81a(2) =3600a(3) =324900a(4) =48441600a(5) =10817248036

External references