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 A021388 #18 Aug 05 2024 16:39:31
%S A021388 0,0,2,6,0,4,1,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
%T A021388 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
%U A021388 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6
%N A021388 Decimal expansion of 1/384.
%H A021388 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1).
%F A021388 From _Elmo R. Oliveira_, Aug 05 2024: (Start)
%F A021388 G.f.: x^2*(2 + 4*x - 6*x^2 + 4*x^3 - 3*x^4 + 5*x^5)/(1 - x).
%F A021388 a(n) = 6, n > 6. (End)
%e A021388 0.0026041666666666666666666666666...
%t A021388 Join[{0, 0}, RealDigits[1/384, 10, 96][[1]]] (* _Alonso del Arte_, Apr 24 2018 *)
%o A021388 (PARI) 1/384. \\ _Altug Alkan_, Apr 24 2018
%Y A021388 Cf. A021100 (1/96), A021196 (1/192).
%K A021388 nonn,cons,easy
%O A021388 0,3
%A A021388 _N. J. A. Sloane_