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 A083148 #9 Sep 25 2019 07:15:08 %S A083148 2,2,2,29,2,91,2,48,11,91,999001,11,91,98912026,99990001,11,909091, %T A083148 99999990000001 %N A083148 a(n) = A083147(n+1)/A083147(n). %Y A083148 Cf. A083147. %K A083148 nonn,base,more %O A083148 1,1 %A A083148 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003 %E A083148 More terms from _Patrick De Geest_, Jun 05 2003 %E A083148 a(16)-a(18) from _Giovanni Resta_, Sep 25 2019