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A041739
Denominators of continued fraction convergents to sqrt(389).
2
1, 1, 3, 4, 7, 11, 18, 47, 65, 2517, 2582, 7681, 10263, 17944, 28207, 46151, 120509, 166660, 6453589, 6620249, 19694087, 26314336, 46008423, 72322759, 118331182, 308985123, 427316305, 16547004713, 16974321018, 50495646749, 67469967767, 117965614516
OFFSET
0,3
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 2564, 0, 0, 0, 0, 0, 0, 0, 0, 1).
FORMULA
G.f.: -(x^16 -x^15 +3*x^14 -4*x^13 +7*x^12 -11*x^11 +18*x^10 -47*x^9 +65*x^8 +47*x^7 +18*x^6 +11*x^5 +7*x^4 +4*x^3 +3*x^2 +x +1) / (x^18 +2564*x^9 -1). - Colin Barker, Nov 23 2013
MATHEMATICA
Denominator[Convergents[Sqrt[389], 30]] (* Vincenzo Librandi, Dec 23 2013 *)
CROSSREFS
Sequence in context: A024319 A041209 A293420 * A042593 A041018 A361907
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 23 2013
STATUS
approved