90043

Appears in sequences

• a(n) = prime(n) * prime(prime(n)).at n=30A073065
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7.at n=12A252672