This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A229881 #10 Oct 02 2013 17:57:21
%S A229881 10601,11411,13931,14741,15551,16361,30203,31013,33533,35153,39293,
%T A229881 73637,79397,93239,94049,94949,97379,1022201,1055501,1120211,1129211,
%U A229881 1145411,1153511,1178711,1186811,1235321,1243421,1268621,1276721,1300031,1317131,1333331
%N A229881 Palindromic prime numbers == 8 (mod 9).
%H A229881 Shyam Sunder Gupta, <a href="/A229881/b229881.txt">Table of n, a(n) for n = 1..966</a>
%t A229881 t = {}; Do[z = n*10^(IntegerLength[n] - 1) + FromDigits@Rest@Reverse@IntegerDigits[n]; If[PrimeQ[z] && Mod[z, 9] == 8, AppendTo[t, z]], {n, 1, 99999}]; t
%Y A229881 Cf. A002385, A229875.
%K A229881 nonn,base,less
%O A229881 1,1
%A A229881 _Shyam Sunder Gupta_, Oct 02 2013