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 A010155 #23 Dec 27 2023 00:20:42
%S A010155 8,1,3,2,3,1,16,1,3,2,3,1,16,1,3,2,3,1,16,1,3,2,3,1,16,1,3,2,3,1,16,1,
%T A010155 3,2,3,1,16,1,3,2,3,1,16,1,3,2,3,1,16,1,3,2,3,1,16,1,3,2,3,1,16,1,3,2,
%U A010155 3,1,16,1,3,2,3,1,16,1,3
%N A010155 Continued fraction for sqrt(77).
%H A010155 Harry J. Smith, <a href="/A010155/b010155.txt">Table of n, a(n) for n = 0..20000</a>
%H A010155 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">Contfrac</a>
%H A010155 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>
%H A010155 <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 1).
%e A010155 8.774964387392122060406388307... = 8 + 1/(1 + 1/(3 + 1/(2 + 1/(3 + ...)))). - _Harry J. Smith_, Jun 09 2009
%t A010155 ContinuedFraction[Sqrt[77],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 09 2011 *)
%o A010155 (PARI) { allocatemem(932245000); default(realprecision, 20000); x=contfrac(sqrt(77)); for (n=0, 20000, write("b010155.txt", n, " ", x[n+1])); } \\ _Harry J. Smith_, Jun 09 2009
%Y A010155 Cf. A010529 Decimal expansion. - _Harry J. Smith_, Jun 09 2009
%K A010155 nonn,cofr
%O A010155 0,1
%A A010155 _N. J. A. Sloane_