267611domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p with p + 2, prime(p) + 2 and prime(prime(p)) + 2 all prime.at n=22A236481Primes p for which p + 2, p^3 + 2 and p^5 + 2 are prime.at n=15A242326Prime numbersat n=23450