139387domain: NPropertiesPrimalityPrimeyesAppears in sequencesValue of C in y = x^2 + 9x + C such that y is prime for all x = 0 to 5.at n=27A097437Primes of the form 8n^2 - 5.at n=19A201857Primes that are the first in a run of exactly 5 emirps.at n=12A346025Prime numbersat n=12956