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A152281
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Number of 9's among the digits of all n-digit primes.
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9
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0, 6, 61, 579, 5484, 52015, 500811, 4873234, 47639648, 467715626, 4606264916, 45472773167, 449751152190, 4454948367909
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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Table[Count[Flatten[IntegerDigits/@Prime[Range[PrimePi[10^i]+1, PrimePi[10^(i+1)]]]], 9], {i, 0, 10}] (* Harvey P. Dale, Dec 08 2010 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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