1679653domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes which can be expressed as sum of distinct powers of 6.at n=16A077720Primes of the form n^4 + n + 1 with n positive.at n=11A272571a(n) = Sum_{d|n} 6^(d-1).at n=8A339686a(n) is the least prime of the form n^k+n+1 with k>1, or 0 if there is no such prime.at n=35A346154Prime numbersat n=126730