Number of n X n arrays of squares of integers with every (n-2) X (n-2) subblock summing to 9.

A159377

Number of n X n arrays of squares of integers with every (n-2) X (n-2) subblock summing to 9.

Terms

    a(0) =80a(1) =24734a(2) =15018432a(3) =3417742132a(4) =348819764864

External references