Number of Fibonacci numbers F(k), k <= 10^n, whose initial digit is 4.

A073560

Number of Fibonacci numbers F(k), k <= 10^n, whose initial digit is 4.

Terms

    a(0) =0a(1) =9a(2) =96a(3) =968a(4) =9690a(5) =96908a(6) =969101a(7) =9690998a(8) =96910014a(9) =969100129a(10) =9691001297

External references