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A042226
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Numerators of continued fraction convergents to sqrt(639).
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2
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25, 76, 101, 177, 455, 1997, 8443, 10440, 50203, 60643, 292775, 1231743, 2756261, 3988004, 6744265, 24220799, 1217784215, 3677573444, 4895357659, 8572931103, 22041219865, 96737810563, 408992462117
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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, 0, 0, 0, 0, 0, 0, 0, 0, 48441598, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
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MATHEMATICA
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Numerator[Convergents[Sqrt[639], 30]] (* Harvey P. Dale, Nov 30 2011 *)
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CROSSREFS
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KEYWORD
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nonn,cofr,frac,easy
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AUTHOR
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STATUS
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approved
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