36661237domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = A059333(2^n).at n=13A059360a(1) = 1; for n > 1, a(n) is the smallest positive number such that the sum of all terms a(1) + ... + a(n) has the same number of prime factors, counted with multiplicity, as the product of all terms a(1) * ... * a(n).at n=7A364139Prime numbersat n=2242289