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A042147
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Denominators of continued fraction convergents to sqrt(598).
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2
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1, 2, 9, 11, 174, 359, 5559, 5918, 29231, 64380, 3119471, 6303322, 28332759, 34636081, 547873974, 1130384029, 17503634409, 18634018438, 92039708161, 202713434760, 9822284576641, 19847282588042, 89211414928809, 109058697516851, 1725091877681574
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OFFSET
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0,2
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,3148702,0,0,0,0,0,0,0,0,0,-1).
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FORMULA
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G.f.: -(x^18 -2*x^17 +9*x^16 -11*x^15 +174*x^14 -359*x^13 +5559*x^12 -5918*x^11 +29231*x^10 -64380*x^9 -29231*x^8 -5918*x^7 -5559*x^6 -359*x^5 -174*x^4 -11*x^3 -9*x^2 -2*x -1) / (x^20 -3148702*x^10 +1). - Colin Barker, Dec 02 2013
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MATHEMATICA
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Denominator[Convergents[Sqrt[598], 30]] (* Vincenzo Librandi, Jan 15 2014 *)
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CROSSREFS
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Cf. A042146, A040573.
Sequence in context: A042687 A083159 A041335 * A090517 A092191 A030376
Adjacent sequences: A042144 A042145 A042146 * A042148 A042149 A042150
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KEYWORD
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nonn,frac,easy
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AUTHOR
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N. J. A. Sloane.
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EXTENSIONS
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More terms from Colin Barker, Dec 02 2013
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STATUS
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approved
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