40763domain: NPropertiesPrimalityPrimeyesAppears in sequencesThe $620 prime list.at n=16A018188a(n) = Sum_{i=0..n} digsum(i)^4, where digsum(i) = A007953(i).at n=21A231689Primes p such that p+8, p+86, p+864 are prime.at n=25A236302Prime p such that p^5 + p^3 + p - 4 and p^5 + p^3 + p + 4 are primes.at n=34A243900Prime numbersat n=4268