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 A040182 #31 Feb 14 2024 10:46:12 %S A040182 14,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28, %T A040182 28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28, %U A040182 28,28,28,28,28,28,28,28,28,28 %N A040182 Continued fraction for sqrt(197). %H A040182 <a href="/index/Con#confC">Index entries for continued fractions for constants</a> %H A040182 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1). %F A040182 From _Elmo R. Oliveira_, Feb 13 2024: (Start) %F A040182 a(n) = 28 for n >= 1. %F A040182 G.f.: 14*(1+x)/(1-x). %F A040182 E.g.f.: 28*exp(x) - 14. %F A040182 a(n) = 14*A040000(n) = 7*A040002(n) = 2*A040042(n). (End) %e A040182 14 + 1/(28 + 1/(28 + 1/(28 + 1/(28 + ...)))) = sqrt(197). %p A040182 Digits := 100: convert(evalf(sqrt(N)),confrac,90,'cvgts'): %t A040182 ContinuedFraction[Sqrt[197],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 28 2011 *) %t A040182 PadRight[{14},120,{28}] (* _Harvey P. Dale_, May 02 2022 *) %Y A040182 Cf. A041364/A041365 (convergents). %Y A040182 Cf. A040000, A040002, A040042. %K A040182 nonn,cofr,easy %O A040182 0,1 %A A040182 _N. J. A. Sloane_