267667domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes in A014342.at n=3A343451Primes p such that if q and r are the next two primes, (p - 1)^2 + 1, (q - 1)^2 + 1 and (r - 1)^2 + 1 are all prime.at n=18A376605Prime numbersat n=23458