281907922943domain: NAppears in sequencesSmallest prime numbers characterized by a convergence speed of n, assuming a(1) = 2 (since 2^2 <> 2^2^2 (mod 10) and 2^2^2 == 2^2^2^2 (mod 10)).at n=10A339313Smallest prime number with a constant convergence speed >= n.at n=10A387664