Palindromic primes with strictly increasing digits up to the middle and then strictly decreasing.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =131a(6) =151a(7) =181a(8) =191a(9) =353a(10) =373a(11) =383a(12) =787a(13) =797a(14) =12421a(15) =12721a(16) =12821a(17) =13831a(18) =13931a(19) =14741a(20) =17971a(21) =34543a(22) =34843a(23) =35753a(24) =1235321a(25) =1245421a(26) =1257521a(27) =1268621a(28) =1278721a(29) =1456541