1004567domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that p + prime(p) is a square.at n=25A242625Prime numbers k where the d(j)-th digit is j for d(j) and j > 0 and d(j) = 0 if and only if j is not a digit of k and d(m) is the m-th digit of k reading from the left.at n=22A346499Prime numbersat n=78842