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Numerators of continued fraction convergents to sqrt(388).
2

%I #11 Mar 18 2017 12:46:24

%S 19,20,59,197,847,10361,11208,100025,111233,1434821,5850517,18986372,

%T 43823261,62809633,2430589315,2493398948,7417387211,24745560581,

%U 106399629535,1301541115001,1407940744536,12565067071289

%N Numerators of continued fraction convergents to sqrt(388).

%H Vincenzo Librandi, <a href="/A041736/b041736.txt">Table of n, a(n) for n = 0..200</a>

%H <a href="/index/Rec#order_28">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 125619266, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

%F a(n) = 125619266*a(n-14) - a(n-28) for n>27. [_Bruno Berselli_, Nov 08 2013]

%t Numerator[Convergents[Sqrt[388], 30]] (* _Vincenzo Librandi_, Nov 07 2013 *)

%Y Cf. A041737.

%K nonn,cofr,frac,easy

%O 0,1

%A _N. J. A. Sloane_.