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A073561 Number of Fibonacci numbers F(k), k <= 10^n, whose initial digit is 5. 0
2, 8, 80, 792, 7918, 79182, 791817, 7918132 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

FORMULA

Lim as n -> inf. a(n)/10^n=log(6/5), where the base is 10. - Robert Gerbicz, Sep 05 2002

EXAMPLE

a(2)=8 because there are 8 Fibonacci numbers up to 10^2 whose initial digit is 5.

CROSSREFS

Sequence in context: A071254 A063528 A259705 * A258970 A230880 A214689

Adjacent sequences:  A073558 A073559 A073560 * A073562 A073563 A073564

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Aug 15 2002

EXTENSIONS

More terms from Robert Gerbicz, Sep 05 2002

STATUS

approved

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Last modified April 22 22:19 EDT 2021. Contains 343197 sequences. (Running on oeis4.)