130222031domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest sets of 3 consecutive palindromic primes (palprimes) in arithmetic progression. The first prime of each set is listed.at n=20A059120Primes that are happy palindromic primes and are also the sum of 3 happy palindromic primes.at n=6A392161Prime numbersat n=7390017