3072703domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(1) = 2, then the smallest palindromic prime obtained by inserting digits anywhere in a(n-1) (including at the ends).at n=3A082621Palindromic primes starting with a digit 3.at n=36A222725Undulating alternating palindromic primes.at n=38A343675Prime numbersat n=221651