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A098842 Number of n-digit Fibonacci numbers. 2
7, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(1)=7 because Fibonacci numbers having one digit are the seven first ones; then the five next ones have two digits, so a(2)=5.

LINKS

Ron Knott, The Fibonacci Numbers.

Ron Knott, [Number of digits in Fib(i)] : Calculator.

CROSSREFS

Essentially the same as A050815, which is the main entry for this sequence. Cf. A000045, A060384.

Sequence in context: A138313 A138312 A152115 * A173166 A070273 A158244

Adjacent sequences:  A098839 A098840 A098841 * A098843 A098844 A098845

KEYWORD

base,easy,nonn

AUTHOR

Alex Vinokur (alexvn(AT)barak-online.net), Nov 03 2004

EXTENSIONS

Corrected by Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Mar 28 2005

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Last modified February 16 15:27 EST 2012. Contains 205930 sequences.