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A042503
Denominators of continued fraction convergents to sqrt(779).
2
1, 1, 11, 56, 123, 3377, 6877, 37762, 384497, 422259, 23186483, 23608742, 259273903, 1319978257, 2899230417, 79599199516, 162097629449, 890087346761, 9062971097059, 9953058443820, 546528127063339, 556481185507159, 6111339982134929, 31113181096181804
OFFSET
0,3
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 23570980, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^18 -x^17 +11*x^16 -56*x^15 +123*x^14 -3377*x^13 +6877*x^12 -37762*x^11 +384497*x^10 -422259*x^9 -384497*x^8 -37762*x^7 -6877*x^6 -3377*x^5 -123*x^4 -56*x^3 -11*x^2 -x -1) / (x^20 -23570980*x^10 +1). - Colin Barker, Dec 16 2013
MATHEMATICA
Denominator[Convergents[Sqrt[779], 30]] (* Vincenzo Librandi, Jan 23 2014 *)
CROSSREFS
Sequence in context: A259193 A099532 A041226 * A223766 A265151 A275643
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 16 2013
STATUS
approved