Palindromic primes in base 4 (written in base 4).

Terms

a(0) =2a(1) =3a(2) =11a(3) =101a(4) =131a(5) =323a(6) =10001a(7) =11311a(8) =12121a(9) =13031a(10) =13331a(11) =30103a(12) =31013a(13) =31313a(14) =32023a(15) =33133a(16) =1003001a(17) =1013101a(18) =1101011a(19) =1120211a(20) =1123211a(21) =1133311a(22) =1201021a(23) =1212121a(24) =1221221a(25) =1302031a(26) =1311131a(27) =1321231