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A072319
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Smallest Fibonacci number containing exactly n 4's.
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0
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34, 144, 44945570212853, 433494437, 8944394323791464, 555565404224292694404015791808, 48558529144435440119720805669229197641, 4244200115309993198876969489421897548446236915, 5034645418285014325766435419644478339818233
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(2)=144 so 144 is the smallest Fibonacci number containing exactly two 4's.
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MATHEMATICA
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With[{f=Fibonacci[Range[1000]]}, Table[Select[f, DigitCount[#, 10, 4]==n&, 1], {n, 9}]]//Flatten (* Harvey P. Dale, May 24 2017 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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