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A215781
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a(n) = ceiling(n*(sqrt(3)-1)).
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2
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0, 1, 2, 3, 3, 4, 5, 6, 6, 7, 8, 9, 9, 10, 11, 11, 12, 13, 14, 14, 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 22, 23, 24, 25, 25, 26, 27, 28, 28, 29, 30, 31, 31, 32, 33, 33, 34, 35, 36, 36, 37, 38, 39, 39, 40, 41, 41, 42
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OFFSET
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0,3
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COMMENTS
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sqrt(3)-1 has continued fraction [0,1,2,1,2,1,2,...]
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LINKS
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MATHEMATICA
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Table[Ceiling[n(Sqrt[3]-1)], {n, 0, 60}] (* Harvey P. Dale, Jan 15 2017 *)
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PROG
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(J) >. ( _1 + %:3) * i.500
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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