206419domain: NPropertiesPrimalityPrimeyesAppears in sequences100000n+1, 100000n+3, 100000n+7, 100000n+9 are all primes.at n=31A064964Primes of the form 9*k^2-10*k+3.at n=28A154261Primes prime(k) such that 2^(k-1) - prime(k) is also prime.at n=18A244913Prime numbersat n=18506