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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
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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MATHEMATICA
| Table[Count[Flatten[IntegerDigits/@Prime[Range[PrimePi[10^i]+1, PrimePi[10^(i+1)]]]], 9], {i, 0, 10}]
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CROSSREFS
| Cf. A130817, A152272, A152273, A152274, A152275, A152276, A152277, A152278, A152279, A152280.
Sequence in context: A069633 A069618 A155458 * A053462 A160751 A142970
Adjacent sequences: A152278 A152279 A152280 * A152282 A152283 A152284
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KEYWORD
| base,nonn
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AUTHOR
| Jon E. Schoenfield (jonscho(AT)hiwaay.net), Dec 01 2008
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EXTENSIONS
| Mathematica program provided by Harvey P. Dale, Dec. 8, 2010
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