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A195176
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a(n) = 3*n - floor(n*sqrt(2)).
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2
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0, 2, 4, 5, 7, 8, 10, 12, 13, 15, 16, 18, 20, 21, 23, 24, 26, 27, 29, 31, 32, 34, 35, 37, 39, 40, 42, 43, 45, 46, 48, 50, 51, 53, 54, 56, 58, 59, 61, 62, 64, 66, 67, 69, 70, 72, 73, 75, 77, 78, 80, 81, 83, 85, 86, 88, 89, 91, 92, 94, 96, 97, 99, 100, 102, 104, 105
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{c = Sqrt[2]}, Table[3*n - Floor[c*n], {n, 0, 50}]] (* G. C. Greubel, Oct 31 2017 *)
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PROG
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(PARI) for(n=0, 50, print1(3*n - floor(n*sqrt(2)), ", ")) \\ G. C. Greubel, Oct 31 2017
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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