98849domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that 32p+1 and (p-1)/32 are both prime.at n=7A086476Total number of elements in all primitive subsets of the integers 1 to n.at n=21A087077Emirps with only composite digits (i.e., 4, 6, 8, 9).at n=1A128389Primes having only {4, 8, 9} as digits.at n=25A385796Prime numbersat n=9487