28398239domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that sum of divisors of p+2 is prime.at n=25A171130Primes of the form k^4 - 2.at n=12A182347Primes that are of the form p^k-2 for some k > 3 and prime p.at n=17A347032Prime numbersat n=1764665