6958801domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest prime p such that there is a gap of 2*prime(n) between p and previous prime.at n=18A080083Increasing peaks in the prime gap sequence A001632.at n=16A086978a(n) = least prime P(n) such that P(n)-2*p(n) is prime and P(n+1)>P(n) with p(n)=n-th prime.at n=18A115972Prime numbersat n=474030