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A042021 Denominators of continued fraction convergents to sqrt(534). 2
1, 9, 37, 46, 83, 1872, 1955, 3827, 17263, 159194, 7340187, 66220877, 272223695, 338444572, 610668267, 13773146446, 14383814713, 28156961159, 127011659349, 1171261895300, 54005058843149, 487216791483641, 2002872224777713, 2490089016261354, 4492961241039067 (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 (0,0,0,0,0,0,0,0,0,7357450,0,0,0,0,0,0,0,0,0,-1).

FORMULA

G.f.: -(x^18 -9*x^17 +37*x^16 -46*x^15 +83*x^14 -1872*x^13 +1955*x^12 -3827*x^11 +17263*x^10 -159194*x^9 -17263*x^8 -3827*x^7 -1955*x^6 -1872*x^5 -83*x^4 -46*x^3 -37*x^2 -9*x -1) / (x^20 -7357450*x^10 +1). - Colin Barker, Nov 29 2013

MATHEMATICA

Denominator[Convergents[Sqrt[534], 30]] (* Vincenzo Librandi, Jan 12 2014 *)

CROSSREFS

Cf. A042020, A040510.

Sequence in context: A126914 A273594 A041150 * A137184 A153244 A200774

Adjacent sequences:  A042018 A042019 A042020 * A042022 A042023 A042024

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Nov 29 2013

STATUS

approved

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Last modified October 22 19:53 EDT 2019. Contains 328319 sequences. (Running on oeis4.)