1458253domain: NPropertiesPrimalityPrimeyesAppears in sequencesLesser of the Gridgeman pairs in base 2 in increasing order: pairs of primes palindromic in base 2 which differ only in their middle digits.at n=10A246870Nonpalindromic primes whose binary expansion, interpreted as a base-10 number, yields a palindromic prime.at n=21A345307Prime numbersat n=111218