Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 51.

A156514

Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 51.

Terms

    a(0) =5a(1) =116a(2) =452a(3) =60568a(4) =662388a(5) =382580208a(6) =13757627936

External references