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 A040057 #23 Dec 27 2023 00:50:50
%S A040057 8,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,
%T A040057 16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,8,16,
%U A040057 8,16,8,16,8,16,8,16,8,16,8
%N A040057 Continued fraction for sqrt(66).
%H A040057 Harry J. Smith, <a href="/A040057/b040057.txt">Table of n, a(n) for n = 0..20000</a>
%H A040057 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">Contfrac</a>
%H A040057 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>
%H A040057 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0, 1).
%e A040057 8.1240384046359603604598835... = 8 + 1/(8 + 1/(16 + 1/(8 + 1/(16 + ...)))). - _Harry J. Smith_, Jun 08 2009
%p A040057 Digits := 100: convert(evalf(sqrt(N)),confrac,90,'cvgts'):
%t A040057 ContinuedFraction[Sqrt[66],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 08 2011 *)
%o A040057 (PARI) { allocatemem(932245000); default(realprecision, 43000); x=contfrac(sqrt(66)); for (n=0, 20000, write("b040057.txt", n, " ", x[n+1])); } \\ _Harry J. Smith_, Jun 08 2009
%Y A040057 Cf. A010518 Decimal expansion. - _Harry J. Smith_, Jun 08 2009
%K A040057 nonn,cofr,easy
%O A040057 0,1
%A A040057 _N. J. A. Sloane_