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 A040604 #23 Jul 08 2025 23:32:44
%S A040604 25,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,
%T A040604 10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,
%U A040604 50,10,50,10,50,10,50,10,50,10,50,10,50,10,50,10,50
%N A040604 Continued fraction for sqrt(630).
%H A040604 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>
%H A040604 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0, 1).
%F A040604 G.f.: 5*(5 + 2*x + 5*x^2)/(1 - x^2). - _Stefano Spezia_, Dec 22 2021
%F A040604 a(n) = 5 * A040024(n). - _Alois P. Heinz_, Dec 22 2021
%p A040604 with(numtheory): Digits := 300: convert(evalf(sqrt(630)),confrac);
%t A040604 Block[{$MaxExtraPrecision=1000}, ContinuedFraction[Sqrt[630],100]] (* or *) PadRight[{25},100,{50,10}] (* _Harvey P. Dale_, May 20 2018 *)
%Y A040604 Cf. A040024.
%K A040604 nonn,cofr,easy
%O A040604 0,1
%A A040604 _N. J. A. Sloane_