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A042587 Denominators of continued fraction convergents to sqrt(822). 2
1, 1, 3, 85, 173, 258, 14621, 14879, 44379, 1257491, 2559361, 3816852, 216303073, 220119925, 656542923, 18603321769, 37863186461, 56466508230, 3199987647341, 3256454155571, 9712895958483, 275217540993095, 560147977944673, 835365518937768 (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, 14794, 0, 0, 0, 0, 0, -1).

FORMULA

G.f.: -(x^10-x^9+3*x^8-85*x^7+173*x^6-258*x^5-173*x^4-85*x^3-3*x^2-x-1) / (x^12-14794*x^6+1). - Colin Barker, Dec 18 2013

MATHEMATICA

Denominator[Convergents[Sqrt[822], 30]] (* Vincenzo Librandi, Jan 25 2014 *)

CROSSREFS

Cf. A042586, A040793.

Sequence in context: A203510 A065162 A056262 * A156879 A120264 A292830

Adjacent sequences:  A042584 A042585 A042586 * A042588 A042589 A042590

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 18 2013

STATUS

approved

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Last modified September 17 07:35 EDT 2021. Contains 347478 sequences. (Running on oeis4.)