326707domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that (p-a)*(p+a)-+a*p and (p-b)*(p+b)-+b*p are primes, a=2,b=3.at n=7A155010Primes of the form 3n^2 + 7.at n=31A201479Prime numbersat n=28145