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A042911
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Denominators of continued fraction convergents to sqrt(987).
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2
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1, 2, 5, 12, 749, 1510, 3769, 9048, 564745, 1138538, 2841821, 6822180, 425816981, 858456142, 2142729265, 5143914672, 321065438929, 647274792530, 1615615023989, 3878504840508, 242082915135485, 488044335111478, 1218171585358441, 2924387505828360
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OFFSET
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0,2
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LINKS
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FORMULA
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G.f.: -(x^2-2*x-1)*(x^4+6*x^2+1) / (x^8-754*x^4+1). - Colin Barker, Dec 25 2013
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MATHEMATICA
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PROG
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(Magma) I:=[1, 2, 5, 12, 749, 1510, 3769, 9048]; [n le 8 select I[n] else 754*Self(n-4)-Self(n-8): n in [1..30]]; // Vincenzo Librandi, Feb 01 2014
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CROSSREFS
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KEYWORD
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nonn,frac,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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