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A231793
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Count of the first 10^n primes containing at least one 6's digit.
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0
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0, 10, 281, 3304, 39155, 445067, 5257963, 56668992, 607124788, 6426731531, 68792548151
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OFFSET
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1,2
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LINKS
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FORMULA
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EXAMPLE
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a(2)=10 because there are 10 primes not greater than 541 (the 100th prime) that contain a 6's digit. Namely: 61, 67, 163, 167, 263, 269, 367, 461, 463, 467.
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MATHEMATICA
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cnt = 0; Table[Do[p = Prime[k]; If[MemberQ[IntegerDigits[p], 6], cnt++], {k, 10^(n - 1) + 1, 10^n}]; cnt, {n, 5}] (* T. D. Noe, Nov 13 2013 *)
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CROSSREFS
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KEYWORD
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more,nonn,base
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AUTHOR
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STATUS
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approved
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