265739domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest prime factor of 1 + (product of first n primes).at n=22A051342G.f. satisfies: A(A(x)) = Sum_{n>=1} A(x)^(n^2)/x^(n^2-n).at n=9A177133Prime numbersat n=23289