128551domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that remain prime through 3 iterations of function f(x) = 8x + 3.at n=30A023292Primes of the form 3n^2 + 4.at n=36A201477Sylvester primes. Yet another proof of the infinity of primes.at n=20A375543Prime numbersat n=12037