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%I #14 Jun 26 2022 23:44:07
%S 31,187,218,2149,2367,4516,43011,47527,328173,20394253,122693691,
%T 143087944,1410485187,1553573131,2964058318,28230097993,31194156311,
%U 215395035859,13385686379569,80529513313273,93915199692842,925766310548851,1019681510241693
%N Numerators of continued fraction convergents to sqrt(970).
%H Vincenzo Librandi, <a href="/A042876/b042876.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 (0,0,0,0,0,0,0,0,656346,0,0,0,0,0,0,0,0,1).
%F G.f.: -(x^17 - 31*x^16 + 187*x^15 - 218*x^14 + 2149*x^13 - 2367*x^12 + 4516*x^11 - 43011*x^10 + 47527*x^9 + 328173*x^8 + 47527*x^7 + 43011*x^6 + 4516*x^5 + 2367*x^4 + 2149*x^3 + 218*x^2 + 187*x + 31) / (x^18 + 656346*x^9 - 1). - _Colin Barker_, Dec 25 2013
%t Numerator[Convergents[Sqrt[970], 30]] (* _Vincenzo Librandi_, Dec 08 2013 *)
%Y Cf. A042877, A040938.
%K nonn,frac,easy
%O 0,1
%A _N. J. A. Sloane_
%E More terms from _Colin Barker_, Dec 25 2013