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 A041438 #14 Jul 09 2025 00:50:00
%S A041438 15,46,1395,4231,128325,389206,11804505,35802721,1085886135,
%T A041438 3293461126,99889719915,302962620871,9188768346045,27869267659006,
%U A041438 845266798116225,2563669662007681,77755356658346655,235829739637047646
%N A041438 Numerators of continued fraction convergents to sqrt(235).
%H A041438 Vincenzo Librandi, <a href="/A041438/b041438.txt">Table of n, a(n) for n = 0..200</a>
%H A041438 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (0,92,0,-1).
%F A041438 G.f.: (15 + 46*x + 15*x^2 - x^3) / (1 - 92*x^2 + x^4). - _Vincenzo Librandi_, Nov 02 2013
%t A041438 Numerator[Convergents[Sqrt[235], 30]] (* or *) CoefficientList[Series[(15 + 46 x + 15 x^2 - x^3)/(1 - 92 x^2 + x^4), {x, 0, 30}], x] (* _Vincenzo Librandi_, Nov 02 2013 *)
%t A041438 LinearRecurrence[{0, 92, 0, -1}, {15, 46, 1395, 4231}, 20] (* _Bruno Berselli_, Nov 02 2013 *)
%Y A041438 Cf. A041439.
%K A041438 nonn,cofr,frac,easy
%O A041438 0,1
%A A041438 _N. J. A. Sloane_