31381059613domain: NAppears in sequencesNext prime after 3^n.at n=22A014211Primes of the form 3^k + 4.at n=7A102903Smallest prime >= 3^n.at n=22A104081Smallest prime > 9^n.at n=11A104086a(n) = 3^n + 4.at n=22A168609Smallest prime p such that p - 3^n + 1 is also a prime.at n=22A389715