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 A021032 #13 Apr 22 2025 08:02:45
%S A021032 0,3,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,
%T A021032 1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,
%U A021032 5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5,7,1,4,2,8,5
%N A021032 Decimal expansion of 1/28.
%C A021032 Same decimal period as A020806. - R. J. Mathar, Feb 13 2011
%H A021032 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,-1,1).
%e A021032 0.0357142857142857142857142857142857142857142857...
%t A021032 Join[{0},RealDigits[1/28,10,98][[1]]] (* _Stefano Spezia_, Apr 22 2025 *)
%K A021032 nonn,cons,easy
%O A021032 0,2
%A A021032 _N. J. A. Sloane_