A042399 - OEIS

%I #16 Mar 19 2017 10:36:36

%S 1,1,17,18,953,971,16489,17460,924409,941869,15994313,16936182,

%T 896675777,913611959,15514467121,16428079080,869774579281,

%U 886202658361,15049017113057,15935219771418,843680445226793,859615664998211,14597531085198169,15457146750196380

%N Denominators of continued fraction convergents to sqrt(726).

%H Vincenzo Librandi, <a href="/A042399/b042399.txt">Table of n, a(n) for n = 0..200</a>

%H <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 970, 0, 0, 0, -1).

%F G.f.: -(x^2-x-1)*(x^4+18*x^2+1) / (x^8-970*x^4+1). - _Colin Barker_, Dec 10 2013

%t Denominator[Convergents[Sqrt[726], 30]] (* _Vincenzo Librandi_, Jan 21 2014 *)

%Y Cf. A042398, A040699.

%K nonn,frac,easy

%O 0,3

%A _N. J. A. Sloane_.

%E More terms from _Colin Barker_, Dec 10 2013