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 A103169 #9 Jul 25 2017 02:32:57
%S A103169 2,727,733,1193,1201,1213,1217,11897,18719,79379,125627,334759,334771,
%T A103169 743989,910909,920957,928429,941449,1093571,1215079,1407181,1466533,
%U A103169 1518863,1648553,1770829,3170743,3300593,7321943,7682687,7755581
%N A103169 Start of seven consecutive primes whose digit reversals are also prime.
%e A103169 1193, 1201, 1213, 1217, 1223, 1229 and 1231 are consecutive primes.
%e A103169 Their digit reversals, 3911, 1021, 3121, 7121, 3221, 9221 and 1321, are all prime.
%t A103169 With[{s = Prime@ Range[10^6]}, IntegerReverse /@ Flatten@ Map[Take[#, Length@ # - 6] &, DeleteCases[SplitBy[Map[IntegerReverse, s], PrimeQ], k_ /; Or[CompositeQ@ First@ k, Length@ k < 7]]]] (* _Michael De Vlieger_, Jul 24 2017 *)
%Y A103169 Cf. A007500, A103170, A103171, A103172.
%K A103169 base,nonn
%O A103169 1,1
%A A103169 _Labos Elemer_, Jan 31 2005
%E A103169 Edited by _David Wasserman_, Sep 05 2006