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A104170
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Number of Smith numbers below 10^n.
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1
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1, 6, 49, 376, 3294, 29928, 278411, 2632758, 25154060, 241882509, 2335807857, 22635291815, 219935518608
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OFFSET
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1,2
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REFERENCES
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S. S. Gupta, Smith Numbers, Mathematical Spectrum, 37 (2004/5), 27-29.
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LINKS
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EXAMPLE
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a(4)=376 because number of Smith number below 10^4 is 376.
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CROSSREFS
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KEYWORD
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nonn,base,hard,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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