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A195119
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a(n) = 2*n - floor(n*sqrt(2)).
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1
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0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 8, 8, 9, 9, 10, 10, 11, 12, 12, 13, 13, 14, 15, 15, 16, 16, 17, 17, 18, 19, 19, 20, 20, 21, 22, 22, 23, 23, 24, 25, 25, 26, 26, 27, 27, 28, 29, 29, 30, 30, 31, 32, 32, 33, 33, 34, 34, 35, 36, 36, 37, 37, 38, 39, 39, 40, 40, 41, 42, 42
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OFFSET
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0,3
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COMMENTS
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LINKS
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FORMULA
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MAPLE
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MATHEMATICA
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Table[2*n - Floor[n*Sqrt[2]], {n, 0, 100}] (* G. C. Greubel, Sep 29 2018 *)
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PROG
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(PARI) vector(100, n, n--; 2*n-floor(n*sqrt(2))) \\ G. C. Greubel, Sep 29 2018
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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