%I #10 Jul 17 2023 23:24:43
%S 1,1,2,3,5,33,38,565,2298,2863,62421,65284,323557,4595082,4918639,
%T 34106916,39025555,73132471,112158026,185290497,8264939894,8450230391,
%U 16715170285,25165400676,41880570961,276448826442,318329397403,4733060390084,19250570957739
%N Denominators of continued fraction convergents to sqrt(511).
%H Vincenzo Librandi, <a href="/A041977/b041977.txt">Table of n, a(n) for n = 0..200</a>
%H <a href="/index/Rec#order_40">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, 8377097920, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
%F a(n) = 8377097920*a(n-20) - a(n-40) for n>39. [_Bruno Berselli_, Jan 11 2014]
%t Denominator[Convergents[Sqrt[511], 30]] (* _Vincenzo Librandi_, Jan 11 2014 *)
%Y Cf. A041976.
%K nonn,frac,easy
%O 0,3
%A _N. J. A. Sloane_.
%E More terms from _Vincenzo Librandi_, Jan 11 2014
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