OFFSET
1,4
FORMULA
MATHEMATICA
IntegerLength[Fibonacci[Range[50]], 3] (* Harvey P. Dale, Aug 13 2018 *)
PROG
(PARI) a(n)={1 + logint(fibonacci(n), 3)} \\ Andrew Howroyd, Jan 01 2020
(Magma) [#Intseq(Fibonacci(n), 3):n in [1..70]]; // Marius A. Burtea, Jan 02 2020
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Offset corrected and terms a(50) and beyond from Andrew Howroyd, Jan 01 2020
STATUS
approved