236507

Properties

Appears in sequences

• Special safe primes (from A005385) such that the next prime is also a safe prime.at n=28A059394
• Smaller of safe prime twins: special safe primes (A005385) p such that the next prime is also the next safe prime and is p+12, i.e., occurs at the closest possible distance, 12.at n=18A059395
• Pisot sequence E(31,51), a(n)=[a(n-1)^2/a(n-2)+1/2].at n=18A275628
• a(n) is the first odd prime greater than a(n-1) such that (a(1), ..., a(n)) forms a prime vector. a(1)=3, a(2)=5.at n=14A287940
• Prime numbersat n=20944