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 A185686 #7 Jul 02 2017 09:36:06 %S A185686 5,15149,186191,21897151,14431069151 %N A185686 Final prime adjoined in the smallest term of A019518 divisible by 47^n. %C A185686 Associated with A019518(i) at i = 3, 1770, 16855, 1383135,... %Y A185686 Cf. A009991, A185656, A185659, A185662, A185665, A185671, A185677, A185680. %K A185686 nonn,base %O A185686 1,1 %A A185686 _James G. Merickel_, Feb 05 2011