%I
%S 1,10,501,5020,251501,2520030,126253001,1265050040,63378755001,
%T 635052600050,31816008757501,318795140175060,15971573017510501,
%U 160034525315280070,8017697838781514001,80337012913130420080,4024868343495302518001,40329020447866155600090
%N Denominators of continued fraction convergents to sqrt(630).
%H Vincenzo Librandi, <a href="/A042209/b042209.txt">Table of n, a(n) for n = 0..200</a>
%H <a href="/index/Rea#recLCC">Index to sequences with linear recurrences with constant coefficients</a>, signature (0,502,0,1).
%F G.f.: (x^210*x1) / (x^4502*x^2+1).  _Colin Barker_, Dec 04 2013
%t Denominator[Convergents[Sqrt[630], 30]] (* _Vincenzo Librandi_, Jan 16 2014_ *)
%Y Cf. A042208, A040604.
%K nonn,frac,easy
%O 0,2
%A _N. J. A. Sloane_.
%E More terms from _Colin Barker_, Dec 04 2013
