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 A021328 #31 Aug 04 2025 15:19:29
%S A021328 0,0,3,0,8,6,4,1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,6,4,
%T A021328 1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,
%U A021328 6,4,1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,6,4,1,9,7,5,3,0,8,6,4,1,9
%N A021328 Decimal expansion of 1/324.
%C A021328 The nominal length of 1 second of latitude is 10000/324 m, that is 30.86419753086419753... m. - _Jean-François Alcover_, Mar 10 2015
%H A021328 Vincenzo Librandi, <a href="/A021328/b021328.txt">Table of n, a(n) for n = 0..1000</a>
%H A021328 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 1).
%F A021328 G.f.: x^2*(5*x^8 + 7*x^7 + 9*x^6 + x^5 + 4*x^4 + 6*x^3 + 8*x^2 + 3)/(1 - x^9). - _Chai Wah Wu_, Jun 21 2016
%e A021328 0.00308641975308641975308641975308641975...
%t A021328 PadLeft[First@#, Abs@Last@# + Length@First@#]&@RealDigits[N[1/324, 100]] (* _Vincenzo Librandi_, Jun 22 2016 *)
%t A021328 realDigitsRecip[324] (* The realDigitsRecip program is at A021200 *) (* or *) PadRight[{0,0},120,{7,5,3,0,8,6,4,1,9}] (* _Harvey P. Dale_, Aug 04 2025 *)
%K A021328 nonn,cons,easy
%O A021328 0,3
%A A021328 _N. J. A. Sloane_