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A042487 Denominators of continued fraction convergents to sqrt(771). 2
1, 1, 4, 13, 30, 133, 163, 296, 459, 755, 1969, 53918, 109805, 163723, 273528, 437251, 710779, 3280367, 7271513, 25094906, 82556231, 107651137, 5895717629, 6003368766, 23905823927, 77720840547, 179347505021, 795110860631, 974458365652, 1769569226283 (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, 0, 0, 0, 0, 0, 0, 5978273860, 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) = 5978273860*a(n-22) - a(n-44) for n>43. - Vincenzo Librandi, Jan 23 2014
MATHEMATICA
Denominator[Convergents[Sqrt[771], 30]] (* Vincenzo Librandi, Jan 23 2014 *)
CROSSREFS
Sequence in context: A232228 A218213 A075880 * A154753 A335981 A191189
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 23 2014
STATUS
approved

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Last modified July 13 14:24 EDT 2024. Contains 374284 sequences. (Running on oeis4.)