150889domain: NPropertiesPrimalityPrimeyesAppears in sequencesEnomial primes of order 6: primes of the form 2*x^6 + 7*x^5 + 1*x^4 + 8*x^3 + 2*x^2 + 8*x + 1 for positive integer x.at n=4A078115Primes p for which p^i + 4 is prime for i = 1, 3 and 5.at n=19A243780Prime numbersat n=13922