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A042663
Denominators of continued fraction convergents to sqrt(861).
2
1, 2, 3, 35, 493, 528, 1021, 2570, 6161, 14892, 21053, 35945, 524283, 5803058, 6327341, 18457740, 1076876261, 2172210262, 3249086523, 37912162015, 534019354733, 571931516748, 1105950871481, 2783833259710, 6673617390901, 16131068041512, 22804685432413
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, 1083203602, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 1083203602*a(n-16) - a(n-32) for n>31. - Vincenzo Librandi, Jan 26 2014
MATHEMATICA
Denominator[Convergents[Sqrt[861], 30]] (* Vincenzo Librandi, Jan 26 2014 *)
CROSSREFS
Sequence in context: A234423 A165448 A111459 * A072291 A325500 A084191
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 26 2014
STATUS
approved