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 A110773 #4 Dec 05 2013 19:57:04 %S A110773 2,23,239,23911,2391113,239111363,23911136351,2391113635129, %T A110773 239111363512969,23911136351296933,2391113635129693349, %U A110773 2391113635129693349159,239111363512969334915917 %N A110773 Primes arising in A110772. %Y A110773 Cf. A110772. %K A110773 base,nonn %O A110773 1,1 %A A110773 _Amarnath Murthy_, Aug 12 2005 %E A110773 More terms from _David Wasserman_, Dec 29 2008