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A042073 Denominators of continued fraction convergents to sqrt(560). 2

%I #13 Jun 13 2015 00:49:39

%S 1,1,2,3,140,143,283,426,19879,20305,40184,60489,2822678,2883167,

%T 5705845,8589012,400800397,409389409,810189806,1219579215,56910833696,

%U 58130412911,115041246607,173171659518,8080937584435,8254109243953,16335046828388,24589156072341

%N Denominators of continued fraction convergents to sqrt(560).

%H Vincenzo Librandi, <a href="/A042073/b042073.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 (0,0,0,142,0,0,0,-1).

%F G.f.: -(x^2-x-1)*(x^4+3*x^2+1) / ((x^4-12*x^2+1)*(x^4+12*x^2+1)). - _Colin Barker_, Dec 01 2013

%t Denominator[Convergents[Sqrt[560], 30]] (* _Vincenzo Librandi_, Jan 13 2014 *)

%Y Cf. A042072, A040536.

%K nonn,cofr,frac,easy

%O 0,3

%A _N. J. A. Sloane_.

%E More terms from _Colin Barker_, Dec 01 2013

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Last modified April 25 12:53 EDT 2024. Contains 371969 sequences. (Running on oeis4.)