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 A083770 #7 Aug 25 2014 12:02:40 %S A083770 3,13,97,1153,18433,184321,737281,22118401,575078401,12651724801, %T A083770 303641395201,4250979532801,212548976640001,8927057018880001, %U A083770 160687026339840001,10283969685749760001,473062605544488960001 %N A083770 Primes arising in A083769. %Y A083770 Cf. A083769. %K A083770 nonn %O A083770 1,1 %A A083770 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 06 2003 %E A083770 More terms from _David Wasserman_, Nov 23 2004