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A042823 Denominators of continued fraction convergents to sqrt(942). 2
1, 1, 3, 13, 263, 1065, 2393, 3458, 209873, 213331, 636535, 2759471, 55825955, 226063291, 507952537, 734015828, 44548902217, 45282918045, 135114738307, 585741871273, 11849952163767, 47985550526341, 107821053216449, 155806603742790, 9456217277783849 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

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, 212266, 0, 0, 0, 0, 0, 0, 0, -1).

FORMULA

G.f.: -(x^14 -x^13 +3*x^12 -13*x^11 +263*x^10 -1065*x^9 +2393*x^8 -3458*x^7 -2393*x^6 -1065*x^5 -263*x^4 -13*x^3 -3*x^2 -x -1) / (x^16 -212266*x^8 +1). - Colin Barker, Dec 24 2013

MATHEMATICA

Denominator[Convergents[Sqrt[942], 30]] (* Vincenzo Librandi, Jan 30 2014 *)

CROSSREFS

Cf. A042822, A040911.

Sequence in context: A220294 A006487 A240618 * A132560 A128385 A100524

Adjacent sequences:  A042820 A042821 A042822 * A042824 A042825 A042826

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 24 2013

STATUS

approved

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Last modified June 23 09:36 EDT 2018. Contains 305693 sequences. (Running on oeis4.)