Number of 15 X 15 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.

A156418

Number of 15 X 15 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.

Terms

    a(0) =1a(1) =6512a(2) =9783480a(3) =1609793976a(4) =142719383676

External references