153941domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that remain prime through 4 iterations of function f(x) = 4x + 9.at n=33A023312Primes that remain prime through 5 iterations of function f(x) = 4x + 9.at n=12A023340Numerator of Bernoulli(n, -3/8).at n=6A158701Prime numbersat n=14183