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A054617
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a(n) = Sum_{d|n} phi(d)*10^(n/d).
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3
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0, 10, 110, 1020, 10120, 100040, 1001220, 10000060, 100010240, 1000002060, 10000100440, 100000000100, 1000001022240, 10000000000120, 100000010000660, 1000000000204080, 10000000100020480, 100000000000000160, 1000000001002002660
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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LINKS
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FORMULA
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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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