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A174415
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Numbers such that when expressed in base 2 and then interpreted in base 10, is not a multiple of the original number.
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0
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3, 5, 6, 7, 9, 11, 12, 13, 14, 15, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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For n=5; a(5) = 9, 9 in base 2 is 1001, which interpreted in base 10, 1001 is not multiple of 9.
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MATHEMATICA
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Select[Range[100], !Divisible[FromDigits[IntegerDigits[#, 2]], #]&] (* Harvey P. Dale, Jul 10 2014 *)
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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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