177132

Appears in sequences

• Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.at n=6A251946
• Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.at n=3A251949
• a(n) = 9*3^n - 15.at n=8A277104