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A065008
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Integers for which the periodic part of the continued fraction for the square root of n begins with 5.
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0
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27, 67, 104, 125, 174, 201, 231, 262, 295, 331, 368, 407, 408, 449, 492, 537, 538, 585, 634, 635, 685, 686, 739, 794, 795, 851, 852, 911, 912, 972, 973, 1035, 1036, 1101, 1102, 1168, 1169, 1237, 1238, 1239, 1309, 1310, 1382, 1383, 1457, 1458, 1459
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OFFSET
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1,1
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LINKS
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EXAMPLE
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The continued fraction for the square root of 104 is 10, {5, 20}.
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MATHEMATICA
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Select[ Range[1500], First[ Last[ ContinuedFraction[ Sqrt[ # ]]]] == 5 & ]
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CROSSREFS
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KEYWORD
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cofr,easy,nonn
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AUTHOR
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STATUS
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approved
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