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 A067795 #12 Feb 19 2017 10:12:37 %S A067795 2,6,8,14,44,128,315,2144,32768,55328384,815634435 %N A067795 Numbers n such that 2*n+1 is the next prime after sigma(n). %C A067795 a(12) > 3*10^10. - _Donovan Johnson_, May 16 2011 %K A067795 nonn,more %O A067795 1,1 %A A067795 _Benoit Cloitre_, Feb 07 2002 %E A067795 Added missing term 2 and a(10)-a(11) from _Donovan Johnson_, May 16 2011