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A195378
Numbers n such that n-th Fibonacci number has all digits 0 to 9.
0
61, 63, 74, 92, 98, 100, 105, 107, 109, 113, 118, 119, 120, 121, 122, 126, 127, 128, 130, 131, 132, 134, 136, 138, 139, 140, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 162, 163, 165, 167, 168, 169, 170, 171, 172, 173, 175, 176
OFFSET
1,1
COMMENTS
Brian Trial conjectures that all Fibonacci numbers greater than F285 are pandigital, see the Gupta link.
It is easy to show that these numbers have positive lower density. [Charles R Greathouse IV, Sep 18 2011]
FORMULA
Conjecture: a(n) = n + 131 for n > 154.
MATHEMATICA
Select[Range[1000], Union[IntegerDigits[Fibonacci[#]]] == Range[0, 9] &] (* T. D. Noe, Sep 20 2011 *)
Select[Range[200], Min[DigitCount[Fibonacci[#]]]>0&] (* Harvey P. Dale, Dec 28 2021 *)
PROG
(PARI) is(n)=#vecsort(Vec(Str(fibonacci(n))), , 8)==10 \\ Charles R Greathouse IV, Sep 18 2011
CROSSREFS
Sequence in context: A042859 A258157 A114085 * A260561 A346808 A345485
KEYWORD
nonn,base
AUTHOR
Kausthub Gudipati, Sep 17 2011
EXTENSIONS
Corrected by T. D. Noe, Sep 20 2011
STATUS
approved