Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 12.

A159388

Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 12.

Terms

    a(0) =24a(1) =98081a(2) =86534020a(3) =59774613259

External references