A073559 Number of Fibonacci numbers F(k), k <= 10^n, whose initial digit is 3.

2, 13, 125, 1250, 12494, 124939, 1249382, 12493871

Offset

1,1

Links

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

Formula

Lim as n -> inf. a(n)/10^n=log(4/3), where the base is 10. - Robert Gerbicz, Sep 05 2002

Example

a(2)=13 because there are 13 Fibonacci numbers up to 10^2 whose initial digit is 3.

Crossrefs

Sequence in context: A151361 A328008 A372103 * A074365 A071362 A108471

Adjacent sequences: A073556 A073557 A073558 * A073560 A073561 A073562

Keyword

base,nonn

Author

Shyam Sunder Gupta, Aug 15 2002

Extensions

More terms from Robert Gerbicz, Sep 05 2002

Status

approved