378223domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form p*q+2 where p and q are consecutive primes.at n=21A048880Primes of the form p*(p+4)+2 where p and p+4 are primes.at n=12A078597Primes p such that p+2 is the square of a product of 3 distinct primes.at n=10A164519Prime numbersat n=32157