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 A142464 #16 Aug 07 2024 13:33:28
%S A142464 3,6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
%T A142464 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 A142464 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 A142464 Decimal expansion of 13/36.
%H A142464 Brady Haran and Grant Sanderson, <a href="https://www.youtube.com/watch?v=pJyKM-7IgAU">More on Bertrand's Paradox (with 3blue1brown)</a>, Numberphile video (2021).
%H A142464 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1).
%F A142464 From _Stefano Spezia_, Aug 04 2024: (Start)
%F A142464 G.f.: (3 + 3*x - 5*x^2)/(1 - x).
%F A142464 a(n) = 1 for n > 1.
%F A142464 E.g.f.: exp(x) + 5*x + 2. (End)
%e A142464 .36111111111111111111111111111111111111111111111111111111111...
%t A142464 PadRight[{3, 6}, 100, 1] (* _Paolo Xausa_, Aug 07 2024 *)
%o A142464 (PARI) 13/36. \\ _Charles R Greathouse IV_, Mar 25 2014
%Y A142464 A companion to A177022.
%K A142464 nonn,cons,easy
%O A142464 0,1
%A A142464 _Rick L. Shepherd_ and _N. J. A. Sloane_, Jun 18 2010