Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 16.
A156464
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 16.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =7a(4) =19a(5) =1430a(6) =9131a(7) =1559914a(8) =17481322a(9) =4701559354a(10) =99812199364
External references
- oeis: A156464