78233domain: NPropertiesPrimalityPrimeyesAppears in sequencesLargest prime substring in 6^n (0 if none).at n=12A046272Smallest prime of irregularity index n.at n=6A061576Irregular primes with irregularity index five.at n=0A219333Odd primes p with the property that gcd(ord_p q: prime q divides p-1) = 1.at n=29A295975Prime numbersat n=7683