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A085855
Number of 1's in decimal expansion of Fibonacci(n).
11
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
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
KEYWORD
base,nonn
AUTHOR
Jason Earls, Jul 06 2003
STATUS
approved