A042035 - OEIS

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A042035

Denominators of continued fraction convergents to sqrt(541).

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

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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, 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

Adjacent sequences: A042032 A042033 A042034 * A042036 A042037 A042038

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 12 2014

STATUS

approved