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 A021087 #17 Jul 21 2025 11:21:54
%S A021087 0,1,2,0,4,8,1,9,2,7,7,1,0,8,4,3,3,7,3,4,9,3,9,7,5,9,0,3,6,1,4,4,5,7,
%T A021087 8,3,1,3,2,5,3,0,1,2,0,4,8,1,9,2,7,7,1,0,8,4,3,3,7,3,4,9,3,9,7,5,9,0,
%U A021087 3,6,1,4,4,5,7,8,3,1,3,2,5,3,0,1,2,0,4,8,1,9,2,7,7,1,0,8,4,3,3
%N A021087 Decimal expansion of 1/83.
%C A021087 This is the case k=17 in Sum_{i>=0} k^i/100^(i+1) = 1/(100-k) for |k| < 100. - _Bruno Berselli_, Aug 23 2017
%H A021087 <a href="/index/Rec#order_41">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1).
%e A021087 .012048192771084337349397590361445783132530120481927710843373493975903614...
%t A021087 Join[ConstantArray[0, Abs@Last@#], First@#]&@RealDigits@N[1/83, 100] (* _Vincenzo Librandi_, Aug 24 2017 *)
%o A021087 (Magma) n:=1/83; [0] cat Reverse(Intseq(Floor(10^100*n))); // _Vincenzo Librandi_, Aug 24 2017
%o A021087 (PARI) 1/83. \\ _Charles R Greathouse IV_, Aug 24 2017
%K A021087 nonn,cons,easy
%O A021087 0,3
%A A021087 _N. J. A. Sloane_