162091domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that (12*p - 1, 12*p + 1) and (18*p - 1, 18*p + 1) are twin primes.at n=19A138660Smaller of two successive primes using the same digits such that the hundreds digit is the most significant digit to differ.at n=5A156117Prime numbersat n=14859