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A099249
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Number of numbers not greater than n such that length in binary representation and number of ones are coprime.
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3
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1, 2, 2, 3, 4, 5, 5, 6, 6, 6, 7, 7, 8, 9, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 28, 28, 29, 30, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Number of numbers m<=n such that A099244(m) = 1.
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LINKS
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FORMULA
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MATHEMATICA
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Accumulate[Table[Boole[CoprimeQ[BitLength[n], DigitCount[n, 2, 1]]], {n, 1, 100}]] (* Amiram Eldar, Jul 16 2023 *)
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PROG
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(Haskell)
a099249 n = a099249_list !! (n-1)
a099249_list = scanl1 (+) $ map ((0 ^) . (subtract 1)) a099244_list
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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