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A042259 Denominators of continued fraction convergents to sqrt(655). 2
1, 1, 2, 5, 27, 86, 199, 1678, 16979, 137510, 291999, 1013507, 5359534, 11732575, 17092109, 28824684, 1458326309, 1487150993, 2945477302, 7378105597, 39836005287, 126886121458, 293608248203, 2475752107082, 25051129319023, 202884786659266 (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, 0, 0, 1475418418, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 1475418418*a(n-16) - a(n-32) for n>31. - Vincenzo Librandi, Jan 19 2014
MATHEMATICA
Denominator[Convergents[Sqrt[655], 30]] (* Vincenzo Librandi, Jan 19 2014 *)
CROSSREFS
Cf. A042258.
Sequence in context: A299104 A090744 A041571 * A100105 A087130 A265266
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 19 2014
STATUS
approved

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Last modified July 14 16:00 EDT 2024. Contains 374322 sequences. (Running on oeis4.)