982087domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form p^2 + 6 where p is prime.at n=21A079141Primes of the form floor(log(p)) + p^2, where p is prime.at n=12A225625a(n) = 2*a(n-1) - a(n-3) for n >= 5, a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 12, a(4) = 22.at n=26A289107Prime numbersat n=77215