145543domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 4*k^2 - 10*k + 7 with k positive.at n=45A073337Primes of the form (2k)^2 + 3(2k + 1)^2.at n=24A147297Beginnings of maximal chains of primes with four members (three links).at n=31A152867Primes of the form n^2 + n + 1, where n is semiprime.at n=27A193144Prime numbersat n=13468