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A042035 Denominators of continued fraction convergents to sqrt(541). 2
1, 3, 4, 23, 27, 239, 505, 2259, 2764, 7787, 26125, 33912, 60037, 694319, 10474822, 21643963, 53762748, 75406711, 129169459, 204576170, 333745629, 538321799, 872067428, 2282456655, 5436980738, 83837167725, 927645825713, 1011482993438, 1939128819151 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2723032632938454900, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
FORMULA
a(n) = 2723032632938454900*a(n-39) + a(n-78) for n>77. - Vincenzo Librandi, Jan 12 2014
MATHEMATICA
Denominator[Convergents[Sqrt[541], 50]] (* Harvey P. Dale, Sep 04 2011 *)
CROSSREFS
Cf. A042034.
Sequence in context: A221643 A042595 A002351 * A343402 A030980 A041861
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 12 2014
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)