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A042759 Denominators of continued fraction convergents to sqrt(910). 2
1, 6, 361, 2172, 130681, 786258, 47306161, 284623224, 17124699601, 103032820830, 6199093949401, 37297596517236, 2244054884983561, 13501626906418602, 812341669270099681, 4887551642527016688, 294065440220891100961, 1769280192967873622454 (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 (0,362,0,-1).

FORMULA

G.f.: -(x^2-6*x-1) / (x^4-362*x^2+1). - Colin Barker, Dec 23 2013

MATHEMATICA

Denominator[Convergents[Sqrt[910], 30]] (* Vincenzo Librandi, Jan 28 2014 *)

LinearRecurrence[{0, 362, 0, -1}, {1, 6, 361, 2172}, 20] (* Harvey P. Dale, Dec 10 2017 *)

CROSSREFS

Cf. A042758, A040879.

Sequence in context: A069945 A086205 A173608 * A188954 A332136 A248384

Adjacent sequences:  A042756 A042757 A042758 * A042760 A042761 A042762

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 23 2013

STATUS

approved

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Last modified October 22 14:58 EDT 2021. Contains 348170 sequences. (Running on oeis4.)