463501domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = 2*a(n-1) + 7*a(n-2) for n > 1; a(0) = 1, a(1) = 13.at n=9A164539Primes p for which there exists more than one triple of primes q, r, s such that p^3 = q^3 + r^3 + s^3.at n=6A384553Prime numbersat n=38714