651247domain: NPropertiesPrimalityPrimeyesAppears in sequencesLesser of a pair (p,p+4) of cousin primes whose arithmetic mean p+2 is a square number.at n=18A176130Primes p where q = p + 4 is also prime and rad((p+1)(p+2)(p+3)) < pq, where rad(k) is the largest squarefree number dividing k.at n=24A268350Prime numbersat n=52913