3353508domain: NAppears in sequencesNumber of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime.at n=5A252036Number of (n+2)X(6+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime.at n=3A252038