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 A089768 #6 Dec 05 2013 19:56:36 %S A089768 13,23,131,1013,10193,1347341,13103171,103471607 %N A089768 Smallest prime which leaves n distinct primes when a suitable digit is deleted. %C A089768 No more terms < 3826400000. - _David Wasserman_, Oct 07 2005 %Y A089768 Cf. A033274. %K A089768 base,nonn %O A089768 1,1 %A A089768 _Amarnath Murthy_, Nov 23 2003 %E A089768 Corrected and extended by _David Wasserman_, Oct 07 2005