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A041856
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Numerators of continued fraction convergents to sqrt(450).
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2
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21, 85, 106, 297, 1294, 2885, 4179, 19601, 827421, 3329285, 4156706, 11642697, 50727494, 113097685, 163825179, 768398401, 32436558021, 130514630485, 162951188506, 456417007497, 1988619218494, 4433655444485, 6422274662979, 30122754096401, 1271577946711821
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OFFSET
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0,1
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,39202,0,0,0,0,0,0,0,-1).
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FORMULA
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G.f.: -(x^15 -21*x^14 +85*x^13 -106*x^12 +297*x^11 -1294*x^10 +2885*x^9 -4179*x^8 -19601*x^7 -4179*x^6 -2885*x^5 -1294*x^4 -297*x^3 -106*x^2 -85*x -21) / ((x^4 -14*x^2 -1)*(x^4 +14*x^2 -1)*(x^8 +198*x^4 +1)). - Colin Barker, Nov 26 2013
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MATHEMATICA
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Numerator/@Convergents[Sqrt[450], 30] (* Harvey P. Dale, May 26 2011 *)
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CROSSREFS
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KEYWORD
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nonn,cofr,frac,easy,less
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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