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 A040077 #22 Dec 27 2023 00:39:39
%S A040077 9,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,
%T A040077 18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,3,18,
%U A040077 3,18,3,18,3,18,3,18,3,18,3
%N A040077 Continued fraction for sqrt(87).
%H A040077 Harry J. Smith, <a href="/A040077/b040077.txt">Table of n, a(n) for n = 0..20000</a>
%H A040077 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">Contfrac</a>
%H A040077 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>
%H A040077 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0, 1).
%e A040077 9.3273790530888150455544755... = 9 + 1/(3 + 1/(18 + 1/(3 + 1/(18 + ...)))). - _Harry J. Smith_, Jun 10 2009
%p A040077 Digits := 100: convert(evalf(sqrt(N)),confrac,90,'cvgts'):
%t A040077 ContinuedFraction[Sqrt[87],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 10 2011 *)
%o A040077 (PARI) { allocatemem(932245000); default(realprecision, 36000); x=contfrac(sqrt(87)); for (n=0, 20000, write("b040077.txt", n, " ", x[n+1])); } \\ _Harry J. Smith_, Jun 10 2009
%Y A040077 Cf. A010538 Decimal expansion. - _Harry J. Smith_, Jun 10 2009
%K A040077 nonn,cofr,easy
%O A040077 0,1
%A A040077 _N. J. A. Sloane_