120078131domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest prime p > prime(n+2) such that the first n odd primes 3, 5, 7, 11, ..., prime(n+1) are quadratic residues mod p, and prime(n+2) is a quadratic non-residue mod p.at n=18A222756Prime numbersat n=6845927