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%I #18 Nov 27 2020 12:44:08
%S 1,7,43,308,15443,108409,665897,4769688,239150297,1678821767,
%T 10312080899,73863388060,3703481483899,25998233775353,159692884136017,
%U 1143848422727472,57352114020509617,402608646566294791,2473003993418278363,17713636600494243332
%N Denominators of continued fraction convergents to sqrt(632).
%H Vincenzo Librandi, <a href="/A042213/b042213.txt">Table of n, a(n) for n = 0..200</a>
%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,15486,0,0,0,-1).
%F G.f.: -(x^2 - 7*x - 1)*(x^4 + 44*x^2 + 1) / (x^8 - 15486*x^4 + 1). - _Colin Barker_, Dec 04 2013
%t Denominator[Convergents[Sqrt[632], 30]] (* _Vincenzo Librandi_, Jan 16 2014 *)
%t LinearRecurrence[{0,0,0,15486,0,0,0,-1},{1,7,43,308,15443,108409,665897,4769688},20] (* _Harvey P. Dale_, Nov 27 2020 *)
%Y Cf. A042212, A040606.
%K nonn,frac,easy
%O 0,2
%A _N. J. A. Sloane_
%E More terms from _Colin Barker_, Dec 04 2013
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