452377domain: NPropertiesPrimalityPrimeyesAppears in sequencesCeiling((n+1/n)^9).at n=3A197908Round((n+1/n)^9).at n=3A198074Primes p such that p^4 + p - 1, p^4 + p^2 - 1, p^4 + p^3 - 1 are also prime.at n=23A226938Prime numbersat n=37899