Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 22.

A156477

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 22.

Terms

    a(0) =4a(1) =84a(2) =2772a(3) =508190a(4) =123856526a(5) =64461381670

External references