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A041989
Denominators of continued fraction convergents to sqrt(517).
2
1, 1, 3, 4, 19, 61, 202, 465, 4852, 5317, 79290, 322477, 4593968, 4916445, 53758418, 112433281, 391058261, 1285608064, 5533490517, 6819098581, 19171687679, 25990786260, 1162766283119, 1188757069379, 3540280421877, 4729037491256, 22456430386901
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, 1181937970798, 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) = 1181937970798*a(n-22) - a(n-44) for n>43. [Bruno Berselli, Jan 11 2014]
MATHEMATICA
Denominator[Convergents[Sqrt[517], 30]] (* Vincenzo Librandi, Jan 11 2014 *)
CROSSREFS
Cf. A041988.
Sequence in context: A196133 A330436 A025089 * A196198 A041561 A050214
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 11 2014
STATUS
approved