256117domain: NPropertiesPrimalityPrimeyesAppears in sequencesLargest integer which cannot be written as a sum of n-th powers of primes.at n=7A122615Primes p such that 2*p^2 - 7, 2*p^2 - 1, and 2*p^2 + 3 are prime.at n=30A356510Prime numbersat n=22534