Primes that are palindromes and have 666 in the middle.

Terms

a(0) =16661a(1) =76667a(2) =3166613a(3) =3466643a(4) =7466647a(5) =7666667a(6) =145666541a(7) =148666841a(8) =152666251a(9) =155666551a(10) =169666961a(11) =176666671a(12) =181666181a(13) =304666403a(14) =305666503a(15) =307666703a(16) =308666803a(17) =329666923a(18) =347666743a(19) =349666943a(20) =373666373a(21) =374666473a(22) =383666383a(23) =391666193a(24) =397666793