331781domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form k^2 + 5.at n=29A056905Primes of the form n^4 + 5.at n=2A182345Primes of the form 3n^3+5.at n=10A201115a(n) = Sum_{d|n} (d!)^d.at n=3A345465Prime numbersat n=28548