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A042289 Denominators of continued fraction convergents to sqrt(670). 2
1, 1, 8, 9, 17, 26, 147, 1496, 7627, 9123, 16750, 25873, 197861, 223734, 11384561, 11608295, 92642626, 104250921, 196893547, 301144468, 1702615887, 17327303338, 88339132577, 105666435915, 194005568492, 299672004407, 2291709599341, 2591381603748 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11582422, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 11582422*a(n-14) - a(n-28) for n>27. - Vincenzo Librandi, Jan 19 2014
MATHEMATICA
Denominator[Convergents[Sqrt[670], 30]] (* Vincenzo Librandi, Jan 19 2014 *)
CROSSREFS
Cf. A042288.
Sequence in context: A129659 A041130 A041307 * A041132 A020693 A042753
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 19 2014
STATUS
approved

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Last modified July 17 18:25 EDT 2024. Contains 374377 sequences. (Running on oeis4.)