Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 13 and every element equal to at least one neighbor.

A146497

Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 13 and every element equal to at least one neighbor.

Terms

    a(0) =0a(1) =20a(2) =17226a(3) =8194791a(4) =1995724092a(5) =51267367432

External references