327449641domain: NPropertiesPrimalityPrimeyesAppears in sequencesIf the least prime factor of ((prime(k)*prime(k+1))^2 + 1)/2 for k >= 2 is not yet in the sequence, then add it to the sequence.at n=12A077287Primes resulting from A087293.at n=7A087294Prime numbersat n=17655318