347957domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that remain prime through 3 iterations of function f(x) = 8x + 1.at n=30A023291Smallest prime p = prime(k) such that the n-th difference of (prime(k), ..., prime(k+n)) is zero.at n=19A349643Prime numbersat n=29811