223099domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 9*k^2-10*k+3.at n=29A154261Primes p such that A008472(p-1) = A008472(p+1) and is a prime.at n=4A190722Primes p such that A008472(p-1) = A008472(p+1), where A008472 = sum of distinct primes dividing n.at n=14A203182Prime numbersat n=19867