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A042645 Denominators of continued fraction convergents to sqrt(852). 2
1, 5, 16, 37, 164, 365, 1259, 6660, 387539, 1944355, 6220604, 14385563, 63762856, 141911275, 489496681, 2589394680, 150674388121, 755961335285, 2418558393976, 5593078123237, 24790870886924, 55174819897085, 190315330578179, 1006751472787980 (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, 0, 0, 0, 0, 0, 0, 388798, 0, 0, 0, 0, 0, 0, 0, -1).

FORMULA

G.f.: -(x^14 -5*x^13 +16*x^12 -37*x^11 +164*x^10 -365*x^9 +1259*x^8 -6660*x^7 -1259*x^6 -365*x^5 -164*x^4 -37*x^3 -16*x^2 -5*x -1) / (x^16 -388798*x^8 +1). - Colin Barker, Dec 20 2013

MATHEMATICA

Denominator[Convergents[Sqrt[852], 30]] (* Vincenzo Librandi, Jan 26 2014 *)

CROSSREFS

Cf. A042644, A040822.

Sequence in context: A022496 A296536 A041044 * A218259 A211807 A174723

Adjacent sequences:  A042642 A042643 A042644 * A042646 A042647 A042648

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 20 2013

STATUS

approved

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Last modified May 28 21:37 EDT 2020. Contains 334690 sequences. (Running on oeis4.)