235891domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrime factors in a divisibility sequence of the Lucas sequence v(P=3,Q=5) of the second kind.at n=36A164816Primes p with pi(p), pi(pi(p)) and pi(p^2) all prime, where pi(.) is given by A000720.at n=20A237687Prime numbersat n=20899