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 A329506 #19 May 06 2024 16:52:54 %S A329506 1,4,8,8,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, %T A329506 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 A329506 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6 %N A329506 Expansion of (1 + x)*(1 + 2*x + 2*x^2 - 2*x^3) / (1 - x). %C A329506 Decimal expansion of 2233/15000. - _Elmo R. Oliveira_, May 06 2024 %H A329506 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1). %F A329506 a(n) = 6 for n >= 4. %o A329506 (PARI) Vec((1 + x)*(1 + 2*x + 2*x^2 - 2*x^3) / (1 - x) + O(x^80)) \\ _Colin Barker_, Nov 21 2019 %Y A329506 Row 3 of array in A329504. %K A329506 nonn,easy %O A329506 0,2 %A A329506 _N. J. A. Sloane_, Nov 20 2019