Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 64.

A156519

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 64.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =11a(4) =10047a(5) =7176242a(6) =28757181899

External references