411043979domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(1) = 2, a(n) = k*a(n-1) + 1, where a(n) is the smallest prime of the form k*a(n-1) + 1 and k > 1.at n=11A059411a(n) = f^(n) (n), where f(n) is the smallest prime == 1 mod n (cf. A034694).at n=9A083810Prime numbersat n=21893408