156421domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 4*k^2 - 10*k + 7 with k positive.at n=47A073337Primes of the form n^2 + n + 1, where n is semiprime.at n=28A193144Brazilian primes that are also the greater of a pair of twin primes.at n=41A306889Prime numbersat n=14389