617971domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes > 1000 in which every substring of lengths 2 and 3 are also prime.at n=23A069490Numbers m such that the four consecutive primes starting at m are congruent to {2, 3, 5, 7} (mod 11).at n=6A354177Prime numbersat n=50471