107981domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes for which only three iterations of 'Prime plus its digit sum equals a prime' are possible.at n=24A048525Quadruple Hex-primes: let f(n) = A102489(n); then sequence lists primes p such that f(p), f(f(p)). f(f(f(p))) and f(f(f(f(p)))) are also primes.at n=32A237440Prime numbersat n=10273