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 A036664 #11 Jul 28 2023 19:18:29
%S A036664 0,0,0,0,0,0,0,0,0,0,0,1,0,2,0,2,0,2,0,2,0,2,0,3,0,4,0,4,0,4,0,4,0,4,
%T A036664 0,5,0,6,0,6,0,6,0,6,0,6,0,7,0,8,0,8,0,8,0,8,0,8,0,9,1,0,1,0,1,0,1,0,
%U A036664 1,0,1,1,1,2,1,2,1,2,1,2,1,2,1,3,1,4,1,4,1,4,1,4,1,4,1,5,1,6,1
%N A036664 Decimal expansion of 1/980198019801.
%t A036664 Join[PadRight[{},11,0],RealDigits[1/980198019801,10,120][[1]]] (* _Harvey P. Dale_, Jul 28 2023 *)
%Y A036664 Cf. A034948, A036663, A036665.
%K A036664 nonn,cons
%O A036664 0,14
%A A036664 _Marvin Ray Burns_