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A042665 Denominators of continued fraction convergents to sqrt(862). 1
1, 2, 3, 11, 14, 25, 239, 981, 2201, 5383, 12967, 18350, 104717, 123067, 596985, 1317037, 25620688, 206282541, 438185770, 644468311, 18483298478, 19127766789, 56738832056, 473038423237, 9044468873559, 18561976170355, 83292373554979, 101854349725334, 592564122181649 (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, 0, 716045132294624251006, 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, 0, -1).
FORMULA
a(n) = 716045132294624251006*a(n-40) - a(n-80) for n>79. - Vincenzo Librandi, Jan 26 2012
MATHEMATICA
Denominator[Convergents[Sqrt[862], 30]] (* Harvey P. Dale, Sep 10 2011 *)
CROSSREFS
Sequence in context: A293827 A145771 A042473 * A282235 A242821 A182709
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 26 2014
STATUS
approved

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)