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 A021061 #12 Jul 08 2025 07:59:46
%S A021061 0,1,7,5,4,3,8,5,9,6,4,9,1,2,2,8,0,7,0,1,7,5,4,3,8,5,9,6,4,9,1,2,2,8,
%T A021061 0,7,0,1,7,5,4,3,8,5,9,6,4,9,1,2,2,8,0,7,0,1,7,5,4,3,8,5,9,6,4,9,1,2,
%U A021061 2,8,0,7,0,1,7,5,4,3,8,5,9,6,4,9,1,2,2,8,0,7,0,1,7,5,4,3,8,5,9
%N A021061 Decimal expansion of 1/57.
%H A021061 <a href="/index/Rec#order_18">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, 1).
%e A021061 0.01754385964912280701754385964...
%t A021061 Join[{0},RealDigits[1/57,10,120][[1]]] (* or *) PadRight[{},120,{0,1,7,5,4,3,8,5,9,6,4,9,1,2,2,8,0,7}] (* _Harvey P. Dale_, May 22 2021 *)
%K A021061 nonn,cons
%O A021061 0,3
%A A021061 _N. J. A. Sloane_