527377domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) and a(n)+4^k are primes at least for k=1,2,3,4,5.at n=17A049495Smallest prime of irregularity index n.at n=7A061576Irregular primes with irregularity index six.at n=0A219334Prime numbersat n=43632