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 A185689 #9 Oct 19 2021 14:40:46 %S A185689 1153,5519,1288769,608227163,3059326339 %N A185689 Final prime adjoined in the smallest term of A019518 divisible by 53^n. %C A185689 Associated with A019518(i) at i = 191, 729, 99242, ... %Y A185689 Cf. A019518, A185656, A185659, A185662, A185665, A185677. %K A185689 nonn,base %O A185689 1,1 %A A185689 _James G. Merickel_, Feb 05 2011