Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 41.
A156506
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 41.
Terms
- a(0) =2a(1) =4a(2) =108a(3) =194a(4) =11736a(5) =89724a(6) =68108540a(7) =1149707144
External references
- oeis: A156506