3406727domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p with p + 2, prime(p) + 2, prime(prime(p)) + 2 and prime(prime(prime(p))) + 2 all prime.at n=5A236482Primes p with p + 2, prime(p) + 2, prime(prime(p)) + 2, prime(prime(prime(p))) + 2, prime(prime(prime(prime(p)))) + 2 all prime.at n=1A236484Prime numbersat n=243995