Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 49.
A156510
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 49.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =198a(4) =10918a(5) =2335392a(6) =1569913286
External references
- oeis: A156510