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 A103171 #6 Oct 15 2013 22:32:38 %S A103171 1193,1201,7904639,91528739,91528777,120890249,154984343,174625597, %T A103171 302706311,302706319,312700789,318629783,707262887,756791029, %U A103171 777528457,777528461,778286917,778286947,923780981,924408493,924408497,958610069 %N A103171 Start of nine consecutive primes whose digit reversals are also prime. %C A103171 There are large gaps in this sequence because all terms begin with 1, 3, 7, or 9. %e A103171 1193, 1201, 1213, 1217, 1223, 1229, 1231, 1237 and 1249 are consecutive primes. %e A103171 Their digit reversals, 3911, 1021, 3121, 7121, 3221, 9221, 1321, 7321 and 9421, are all prime. %Y A103171 Cf. A007500, A103169, A103170, A103172. %K A103171 base,nonn %O A103171 1,1 %A A103171 _Labos Elemer_, Jan 31 2005 %E A103171 Edited by _David Wasserman_, Sep 05 2006