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 A329502 #23 Jul 16 2025 17:26:59
%S A329502 1,4,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
%T A329502 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 A329502 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6
%N A329502 Expansion of (1+x)*(1+2*x)/(1-x).
%C A329502 Decimal expansion of 11/75. - _Elmo R. Oliveira_, Aug 09 2024
%H A329502 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1).
%F A329502 a(n) = 6 for n >= 2.
%F A329502 E.g.f.: 6*exp(x) - 2*x - 5. - _Elmo R. Oliveira_, Aug 09 2024
%t A329502 RealDigits[11/75,10,120][[1]] (* or *) PadRight[{1,4},120,{6}] (* _Harvey P. Dale_, Jul 16 2025 *)
%o A329502 (PARI) Vec((1 + x)*(1 + 2*x) / (1 - x) + O(x^80)) \\ _Colin Barker_, Nov 19 2019
%Y A329502 Row 3 of array in A329501.
%K A329502 nonn,easy
%O A329502 0,2
%A A329502 _N. J. A. Sloane_, Nov 19 2019