264517

Appears in sequences

• Let a(1) = least prime p such that 18517# + p is = q(1) prime, then a(n+1) = least number such that q(n)*(q(n)+a(n+1))-1 is prime.at n=2A144306
• Composite squarefree numbers n such that p(i)-3 divides n+3, where p(i) are the prime factors of n.at n=15A225703