308918

Appears in sequences

• a(n) is the smallest semiprime such that difference between a(n) and next semiprime, b(n), is n.at n=28A131109
• a(n) = least member of A006881 whose difference from the following one equals n, or 0 if no such semiprime exists.at n=28A140784
• Numbers n such that A160691(n)=12.at n=27A158963