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A042537
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Denominators of continued fraction convergents to sqrt(797).
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2
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1, 4, 13, 173, 186, 917, 3854, 4771, 65877, 202402, 875485, 49229562, 197793733, 642610761, 8551733626, 9194344387, 45329111174, 190510789083, 235839900257, 3256429492424, 10005128377529, 43276943002540, 2433513936519769, 9777332689081616
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OFFSET
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0,2
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49431964, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
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FORMULA
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MATHEMATICA
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Denominator[Convergents[Sqrt[797], 30]] (* Harvey P. Dale, Sep 30 2012 *)
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PROG
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(Magma) I:=[1, 4, 13, 173, 186, 917, 3854, 4771, 65877, 202402, 875485, 49229562, 197793733, 642610761, 8551733626, 9194344387, 45329111174, 190510789083, 235839900257, 3256429492424, 10005128377529, 43276943002540]; [n le 22 select I[n] else 49431964*Self(n-11)+Self(n-22): n in [1..30]]; // Vincenzo Librandi, Jan 23 2014
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CROSSREFS
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KEYWORD
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nonn,frac,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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