The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064525 Smallest Fibonacci number with a prime number of decimal digits. 0
13, 144, 10946, 1346269, 12586269025, 1548008755920, 14472334024676221, 1100087778366101931, 10284720757613717413913, 11825896447871834976429068427, 1454489111232772683678306641953 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
13 is the first Fibonacci with 2 decimal digits. 144 is the first Fibonacci with 3 decimal digits, etc.
MATHEMATICA
Module[{nn=500, fibs}, fibs=Fibonacci[Range[nn]]; Table[SelectFirst[fibs, IntegerLength[ #]==n&], {n, Prime[Range[11]]}]] (* Harvey P. Dale, Dec 16 2018 *)
CROSSREFS
Sequence in context: A045725 A072351 A134489 * A065411 A354466 A038492
KEYWORD
base,easy,nonn
AUTHOR
Jason Earls, Oct 07 2001
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 16 07:19 EDT 2024. Contains 373423 sequences. (Running on oeis4.)