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A226744
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Round((10^n)/(log(10^n) - 1)).
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2
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8, 28, 169, 1218, 9512, 78030, 661459, 5740304, 50701542, 454011971, 4110416301, 37550193650, 345618860221, 3201414635781, 29816233849001, 279007258230820, 2621647966812031, 24723998785919976, 233922961602470391, 2219671974013732243
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listen;
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OFFSET
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1,1
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REFERENCES
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A. M. Legendre, Essai sur la Théorie des Nombres, Paris: Duprat, 1808.
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LINKS
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FORMULA
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a(n) = round((10^n)/(log(10^n) - 1)).
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EXAMPLE
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a(2) = 28 because (10^2)/(log(10^2) - 1) = 27.7379415786....
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MATHEMATICA
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Table[Round[10^n/(Log[10^n] - 1)], {n, 20}]
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PROG
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(PARI) for(n=1, 20, print1(round(10^n/(log(10^n)-1)), ", "));
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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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