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 A185683 #7 Jul 02 2017 09:36:06 %S A185683 439,439,922457,24105901,2278313963,9480709177 %N A185683 Final prime adjoined in the smallest term of A019518 divisible by 41^n. %C A185683 Associated with A019518(i) at i = 85, 85, 72914, 1513350,... %Y A185683 Cf. A185656, A185659, A185662, A185665, A185671, A185671, A185680. %K A185683 nonn,base %O A185683 1,1 %A A185683 _James G. Merickel_, Feb 05 2011