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 A168248 #2 Mar 30 2012 17:26:30 %S A168248 1159,2217,3463,4161,5713,5911,6037,6451,6699,7333,9403,10249,10447, %T A168248 10483,11019,11347,11383,13039,13503,14173,15127,15879,18489,19569, %U A168248 20307,20563,21333,22921,23713,24613,25009,26877,27111,30207,30229 %N A168248 a(n) = A168174(n)-10^12. %Y A168248 Cf. A168174 Emirps with emirp number and sum of digits, A006567 Emirps. %K A168248 base,nonn %O A168248 1,1 %A A168248 _Zak Seidov_, Nov 21 2009