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A042293 Denominators of continued fraction convergents to sqrt(672). 2

%I

%S 1,1,12,13,662,675,8087,8762,446187,454949,5450626,5905575,300729376,

%T 306634951,3673713837,3980348788,202691153237,206671502025,

%U 2476077675512,2682749177537,136613536552362,139296285729899,1668872679581251,1808168965311150

%N Denominators of continued fraction convergents to sqrt(672).

%H Vincenzo Librandi, <a href="/A042293/b042293.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 (0,0,0,674,0,0,0,-1).

%F G.f.: -(x^2-x-1)*(x^4+13*x^2+1) / ((x^4-26*x^2+1)*(x^4+26*x^2+1)). - _Colin Barker_, Dec 07 2013

%t Denominator[Convergents[Sqrt[672], 30]] (* _Vincenzo Librandi_, Jan 19 2014 *)

%Y Cf. A042292, A040646.

%K nonn,frac,easy

%O 0,3

%A _N. J. A. Sloane_.

%E More terms from _Colin Barker_, Dec 07 2013

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Last modified April 18 07:39 EDT 2021. Contains 343084 sequences. (Running on oeis4.)