Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 50.

A156513

Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 50.

Terms

    a(0) =3a(1) =4a(2) =174a(3) =272a(4) =48562a(5) =360468a(6) =211236822a(7) =5909410784

External references