Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 34.

A156496

Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 34.

Terms

    a(0) =2a(1) =4a(2) =92a(3) =168a(4) =23020a(5) =138156a(6) =34265768a(7) =728427904a(8) =659452297402

External references