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 A158715 #5 Mar 31 2012 10:26:14 %S A158715 19,109,1049,14869,104869 %N A158715 Smallest prime with n distinct nonprime decimal digits. %Y A158715 A007809 %K A158715 fini,full,nonn,base %O A158715 2,1 %A A158715 _Lekraj Beedassy_, Mar 24 2009 %E A158715 a(6) corrected by _Ray Chandler_, Mar 27 2009