2874398515domain: NAppears in sequencesNumber of primes <= 2^n.at n=36A007053Number of primes < 4^n.at n=18A086680Number of primes < 8^n.at n=12A086681Number of primes less than 2^n.at n=35A185192Numbers n such that prime(n) <= 2^(prime(n+1)-prime(n)) < prime(n+1).at n=6A208456