Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 29.
A156490
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 29.
Terms
- a(0) =2a(1) =0a(2) =86a(3) =38a(4) =6888a(5) =50136a(6) =13485160a(7) =436323840a(8) =284466859232
External references
- oeis: A156490