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 A056159 #13 Aug 12 2023 11:06:46
%S A056159 1,5,33,250,2000,16666,142857,1250000,11111111,100000000,909090909,
%T A056159 8333333333,76923076923,714285714285,6666666666666,62500000000000,
%U A056159 588235294117647,5555555555555555,52631578947368421,500000000000000000
%N A056159 a(n) = floor(10^(n-1)/n).
%H A056159 Seiichi Manyama, <a href="/A056159/b056159.txt">Table of n, a(n) for n = 1..1000</a>
%H A056159 <a href="/index/1#1overn">Index entries for sequences related to decimal expansion of 1/n</a>
%t A056159 Table[Floor[10^(n-1)/n],{n,20}] (* _Harvey P. Dale_, Apr 15 2018 *)
%o A056159 (PARI) a(n) = 10^(n-1)\n; \\ _Seiichi Manyama_, Aug 12 2023
%Y A056159 Cf. A057072, A060156.
%K A056159 nonn
%O A056159 1,2
%A A056159 _Henry Bottomley_, Jul 31 2000
%E A056159 More terms from _Harvey P. Dale_, Apr 15 2018