512591domain: NPropertiesPrimalityPrimeyesAppears in sequencesLower of twin primes (p,p+2) such that (p*(p+2))^2 + p^2 - (p+2)^2 and (p*(p+2))^2 - p^2 + (p+2)^2 are both prime.at n=23A079812Prime numbersat n=42481