Palindromic prime numbers == 7 (mod 9).

Terms

a(0) =7a(1) =151a(2) =313a(3) =727a(4) =10501a(5) =11311a(6) =13831a(7) =15451a(8) =17971a(9) =30103a(10) =35053a(11) =37573a(12) =70207a(13) =71917a(14) =72727a(15) =78487a(16) =90709a(17) =93139a(18) =94849a(19) =96469a(20) =1062601a(21) =1160611a(22) =1177711a(23) =1193911a(24) =1201021a(25) =1218121a(26) =1242421a(27) =1250521a(28) =1422241a(29) =1447441