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A042439 Denominators of continued fraction convergents to sqrt(747). 2
1, 3, 163, 492, 26731, 80685, 4383721, 13231848, 718903513, 2169942387, 117895792411, 355857319620, 19334191051891, 58358430475293, 3170689436717713, 9570426740628432, 519973733430653041, 1569491627032587555, 85272521593190381011, 257387056406603730588 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Index entries for linear recurrences with constant coefficients, signature (0, 164, 0, -1).

FORMULA

G.f.: -(x^2-3*x-1) / (x^4-164*x^2+1). - Colin Barker, Dec 14 2013

MATHEMATICA

Denominator[Convergents[Sqrt[747], 30]] (* Vincenzo Librandi, Jan 22 2014 *)

CROSSREFS

Cf. A042438, A040719.

Sequence in context: A157559 A157586 A341224 * A212845 A212806 A030258

Adjacent sequences:  A042436 A042437 A042438 * A042440 A042441 A042442

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 14 2013

STATUS

approved

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Last modified August 12 06:02 EDT 2022. Contains 356067 sequences. (Running on oeis4.)