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A042880 Numerators of continued fraction convergents to sqrt(972). 2

%I

%S 31,156,187,343,530,4053,24848,28901,111551,140452,2077879,2218331,

%T 8732872,10951203,74440090,532031833,606471923,1138503756,1744975679,

%U 9863382151,613274669041,3076236727356

%N Numerators of continued fraction convergents to sqrt(972).

%H Vincenzo Librandi, <a href="/A042880/b042880.txt">Table of n, a(n) for n = 0..200</a>

%F a(n) = 19726764302*a(n-20) - a(n-40) for n>39. [_Bruno Berselli_, Dec 08 2013]

%t Numerator[Convergents[Sqrt[972], 30]] (* _Vincenzo Librandi_, Dec 08 2013 *)

%Y Cf. A042881.

%K nonn,cofr,frac,easy

%O 0,1

%A _N. J. A. Sloane_.

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Last modified March 21 12:04 EDT 2019. Contains 321369 sequences. (Running on oeis4.)