225217domain: NPropertiesPrimalityPrimeyesAppears in sequencesSlowest increasing sequence in which a(n) is a prime closest to the sum of all previous terms.at n=18A109277Smallest prime q such that sum(i=1..n-1, q mod(prime(i))) == q mod prime(n).at n=10A216150Primes p for which p + 4, p^2 + 4 and p^3 + 4 are primes.at n=34A243734Prime numbersat n=20037