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A072319 Smallest Fibonacci number containing exactly n 4's. 0

%I

%S 34,144,44945570212853,433494437,8944394323791464,

%T 555565404224292694404015791808,

%U 48558529144435440119720805669229197641,4244200115309993198876969489421897548446236915,5034645418285014325766435419644478339818233

%N Smallest Fibonacci number containing exactly n 4's.

%e a(2)=144 so 144 is the smallest Fibonacci number containing exactly two 4's.

%t With[{f=Fibonacci[Range[1000]]},Table[Select[f,DigitCount[#,10,4]==n&,1],{n,9}]]//Flatten (* _Harvey P. Dale_, May 24 2017 *)

%K base,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Jul 14 2002

%E a(9) from _Harvey P. Dale_, May 24 2017

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Last modified September 21 00:14 EDT 2021. Contains 347596 sequences. (Running on oeis4.)