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 A177022 #30 Aug 07 2024 08:38:33
%S A177022 1,3,6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
%T A177022 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
%U A177022 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
%N A177022 Decimal expansion of 49/36.
%H A177022 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1).
%F A177022 From _Elmo R. Oliveira_, Aug 03 2024: (Start)
%F A177022 G.f.: x*(1 + 3*x + 6*x^2) + x^4/(1 - x).
%F A177022 a(n) = 1 for n >= 4. (End)
%F A177022 E.g.f.: exp(x) - 1 + x^2 + 5*x^3/6. - _Stefano Spezia_, Aug 04 2024
%e A177022 1.3611111111111111111111111...
%t A177022 PadRight[{1, 3, 6}, 100, 1] (* _Paolo Xausa_, Aug 07 2024 *)
%o A177022 (PARI) 49/36. \\ _Charles R Greathouse IV_, Jan 11 2012
%Y A177022 Square of A177057.
%K A177022 nonn,cons,easy
%O A177022 1,2
%A A177022 _Vincenzo Librandi_, May 26 2010
%E A177022 Edited by _Rick L. Shepherd_, Jun 17 2010