528673domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that remain prime through 4 iterations of the function f(x) = 3x + 4.at n=24A023308Primes that remain prime through 5 iterations of function f(x) = 3x + 4.at n=6A023336Primes of the form a^5 + b^4 with a>0.at n=27A100274Prime numbersat n=43723