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A072319
Smallest Fibonacci number containing exactly n 4's.
0
34, 144, 44945570212853, 433494437, 8944394323791464, 555565404224292694404015791808, 48558529144435440119720805669229197641, 4244200115309993198876969489421897548446236915, 5034645418285014325766435419644478339818233
OFFSET
1,1
EXAMPLE
a(2)=144 so 144 is the smallest Fibonacci number containing exactly two 4's.
MATHEMATICA
With[{f=Fibonacci[Range[1000]]}, Table[Select[f, DigitCount[#, 10, 4]==n&, 1], {n, 9}]]//Flatten (* Harvey P. Dale, May 24 2017 *)
CROSSREFS
Sequence in context: A153465 A280550 A105714 * A031398 A259954 A180759
KEYWORD
base,nonn
AUTHOR
Shyam Sunder Gupta, Jul 14 2002
EXTENSIONS
a(9) from Harvey P. Dale, May 24 2017
STATUS
approved