Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7.

A159369

Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7.

Terms

    a(0) =12a(1) =19028a(2) =2940768a(3) =318767900a(4) =10588659260a(5) =167797693208

External references