91943domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers n such that (23^n - 1)/22 is prime.at n=3A204940Primes generating record-sized non-pandigital power.at n=8A218100a(1) = 1, a(n+1) = smallest prime divisor of 1 + product of all the primes p <= a(n).at n=6A224894Prime numbersat n=8881