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A042209 Denominators of continued fraction convergents to sqrt(630). 2


%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^2-10*x-1) / (x^4-502*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

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Last modified December 18 23:18 EST 2014. Contains 252175 sequences.