Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 65.

A156522

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 65.

Terms

    a(0) =4a(1) =18a(2) =372a(3) =16404a(4) =5141900a(5) =9054510666

External references