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Search: id:A127354
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| A127354 |
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Digit count of prime(n). The digit count numerically summarizes the frequency of digits 0 through 9 in that order when they occur in a number. |
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+0
3
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| 12, 13, 15, 17, 21, 1113, 1117, 1119, 1213, 1219, 1113, 1317, 1114, 1314, 1417, 1315, 1519, 1116, 1617, 1117, 1317, 1719, 1318, 1819, 1719, 1021, 101113, 101117, 101119, 2113, 111217, 2113, 111317, 111319, 111419, 2115, 111517, 111316, 111617, 111317
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n) = A047842(A000040(n)).
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MATHEMATICA
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dc[n_] :=FromDigits@Flatten@Select[Table[{DigitCount[n, 10, k], k}, {k, 0, 9}], #[[1]] > 0 &]; Table[dc[Prime[n]], {n, 40}] (*Chandler*)
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CROSSREFS
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Cf. A047842, A000040, A127355.
Sequence in context: A076979 A085520 A085556 this_sequence A125664 A074164 A076085
Adjacent sequences: A127351 A127352 A127353 this_sequence A127355 A127356 A127357
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KEYWORD
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nonn,base
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AUTHOR
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Lekraj Beedassy (blekraj(AT)yahoo.com), Jan 11 2007
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