55414847domain: NPropertiesPrimalityPrimeyesAppears in sequencesOdd numbers that are neither of the form p + 2^k nor of the form p - 2^k with k > 0, and p prime.at n=4A263644Primes that are neither of the form p + 2^k nor of the form p - 2^k with k > 0, and p prime.at n=2A263645Prime numbersat n=3305489