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 A010733 #27 Dec 14 2023 05:53:23
%S A010733 8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,
%T A010733 10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,8,10,
%U A010733 8,10,8,10,8,10,8,10,8,10,8,10
%N A010733 Period 2: repeat (8,10).
%C A010733 Continued fraction of 4 + 2*sqrt(105)/5. - _R. J. Mathar_, Nov 21 2011
%H A010733 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0,1).
%F A010733 G.f. ( -8-10*x ) / ( (x-1)*(1+x) ). - _R. J. Mathar_, Nov 21 2011
%t A010733 PadLeft[{8,10},70,{8,10}] (* _Harvey P. Dale_, Aug 09 2011 *)
%o A010733 (PARI) a(n)=n%2*2+8 \\ _Charles R Greathouse IV_, Jun 11 2015
%K A010733 nonn,easy
%O A010733 0,1
%A A010733 _N. J. A. Sloane_