661972301domain: NPropertiesPrimalityPrimeyesAppears in sequencesInitial members of prime octuplets (p, p+2, p+6, p+8, p+12, p+18, p+20, p+26).at n=6A022011Primes p in prime septuplets (p, p+2, p+6, p+8, p+12, p+18, p+20) at the end of the maximal gaps in A201051.at n=8A233425Prime numbersat n=34383394