Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 9.

A159378

Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 9.

Terms

    a(0) =160a(1) =79462a(2) =106933952a(3) =53019140920

External references