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A062153
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a(n) = floor(log_3(n)).
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28
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0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,9
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LINKS
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FORMULA
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a(n) = (number of digits of n when written in base 3) - 1.
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MATHEMATICA
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PROG
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(PARI) default(realprecision, 100); t=1/log(3); for (n=1, 1000, write("b062153.txt", n, " ", floor(t*log(n) + 0.0000001)) ) \\ Harry J. Smith, Aug 02 2009
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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