451937domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that all of p - m^2, m = 2, 4, 6, 8, 10, are (positive) primes.at n=22A247941Numbers n such that abs(n - 4^k) is prime for k = 1..8.at n=21A281047Prime numbersat n=37870