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 A158707 #5 Mar 31 2012 10:26:14 %S A158707 1123564987,302458769,103458679,1012458679,102356789,102346897, %T A158707 1012375489,102385649,102376459,1012356487 %N A158707 Smallest emirp with all decimal digits except n. %Y A158707 A006567, A133191 %K A158707 nonn,base,fini,full %O A158707 0,1 %A A158707 _Lekraj Beedassy_, Mar 24 2009 %E A158707 a(1), a(2), a(6), a(7) corrected by _Ray Chandler_, Mar 24 2009