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A041583 Denominators of continued fraction convergents to sqrt(309). 2

%I

%S 1,1,2,5,7,19,83,102,185,287,2481,15173,17654,191713,209367,1447915,

%T 11792687,13240602,25033289,38273891,178128853,394531597,572660450,

%U 1539852497,2112512947,3652365444,126292938043,129945303487,256238241530,642421786547

%N Denominators of continued fraction convergents to sqrt(309).

%H Vincenzo Librandi, <a href="/A041583/b041583.txt">Table of n, a(n) for n = 0..200</a>

%H <a href="/index/Rec#order_52">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128405450990, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

%F a(n) = 128405450990*a(n-26) - a(n-52) for n>51. - _Vincenzo Librandi_, Dec 20 2013

%t Denominator[Convergents[Sqrt[309], 30]] (* _Vincenzo Librandi_, Dec 20 2013 *)

%Y Cf. A041582.

%K nonn,frac,easy

%O 0,3

%A _N. J. A. Sloane_.

%E More terms from _Vincenzo Librandi_, Dec 20 2013

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Last modified January 21 19:03 EST 2022. Contains 350480 sequences. (Running on oeis4.)