A085855 Number of 1's in decimal expansion of Fibonacci(n).

0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 3, 0, 0, 0, 2, 2, 3, 1, 0, 1, 1, 0, 0, 0, 1, 2, 1, 0, 2, 3, 1, 0, 1, 3, 3, 2, 0, 0, 1, 2, 1, 3, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 3, 0, 1, 2, 2, 2, 4, 2, 1, 1, 3, 1, 0, 1, 2, 1, 1, 5, 1, 2, 3, 2, 2, 5, 4, 3, 1, 2, 5, 3, 1, 1, 2, 2, 2, 3, 5, 2, 1, 0

Offset

0,20

Links

Table of n, a(n) for n=0..104.

Example

Fibonacci(10)=55, so a(10)=0 and Fibonacci(21)=10946, so a(21)=1.

Mathematica

Table[DigitCount[Fibonacci[n]][[1]], {n, 0, 200}] (* Vladimir Joseph Stephan Orlovsky, Jul 01 2011 *)

Crossrefs

Cf. 0's A085854, 2's A085856, 3's A085857, 4's A085858, 5's A085859, 6's A085860, 7's A085861, 8's A085862, 9's A085863.

Sequence in context: A014511 A333687 A210572 * A280500 A309576 A128132

Adjacent sequences: A085852 A085853 A085854 * A085856 A085857 A085858

Keyword

base,nonn

Author

Jason Earls, Jul 06 2003

Status

approved