370949domain: NPropertiesPrimalityPrimeyesAppears in sequencesThe second primes of two-prime centuries.at n=1A156999Primes p=prime(i) of level (1,7), i.e., such that A118534(i) = prime(i-7).at n=9A216202a(n) is the least prime p such that q-p = n*(r-q) where p,q,r are consecutive primes.at n=38A358974Prime numbersat n=31592