221401domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest of three consecutive primes whose sum is a square.at n=22A206279Greatest prime factor of n^9+1.at n=32A240552Primes p such that p-2, p^2-2 and p^3-2 are all prime.at n=24A270972Prime numbersat n=19727