Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 52.

A156515

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 52.

Terms

    a(0) =2a(1) =6a(2) =134a(3) =10554a(4) =5819580a(5) =9898523036

External references