741841

Appears in sequences

• a(n) is the smallest semiprime such that difference between a(n) and next semiprime, b(n), is n.at n=39A131109
• a(n) = least member of A006881 whose difference from the following one equals n, or 0 if no such semiprime exists.at n=39A140784
• Semiprimes p such that next semiprime after p is p + 40.at n=0A282407