130261domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrime(k), where k is such that (1 + Sum_{i=1..k} prime(i)^19) / k is an integer.at n=18A233769Primes of the form n^3 + 2n^2 + 5n + 11.at n=23A271840Total number of noncomposite parts in all partitions of n.at n=35A326957Prime numbersat n=12183