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A041989 Denominators of continued fraction convergents to sqrt(517). 2
1, 1, 3, 4, 19, 61, 202, 465, 4852, 5317, 79290, 322477, 4593968, 4916445, 53758418, 112433281, 391058261, 1285608064, 5533490517, 6819098581, 19171687679, 25990786260, 1162766283119, 1188757069379, 3540280421877, 4729037491256, 22456430386901 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

FORMULA

a(n) = 1181937970798*a(n-22) - a(n-44) for n>43. [Bruno Berselli, Jan 11 2014]

MATHEMATICA

Denominator[Convergents[Sqrt[517], 30]] (* Vincenzo Librandi, Jan 11 2014 *)

CROSSREFS

Cf. A041988.

Sequence in context: A196133 A330436 A025089 * A196198 A041561 A050214

Adjacent sequences:  A041986 A041987 A041988 * A041990 A041991 A041992

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 11 2014

STATUS

approved

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Last modified May 9 05:11 EDT 2021. Contains 343688 sequences. (Running on oeis4.)