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A085856
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Number of 2's in decimal expansion of Fibonacci(n).
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9
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0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 2, 1, 1, 1, 1, 1, 2, 1, 1, 0, 1, 1, 0, 2, 0, 0, 0, 0, 2, 1, 1, 3, 1, 2, 1, 3, 1, 2, 2, 2, 3, 1, 1, 1, 1, 2, 0, 2, 2, 3, 0, 1, 2, 1, 0, 1, 1, 2, 1, 1, 4, 2, 1, 1, 0, 0, 3, 2, 2, 0, 0, 2, 0, 1, 3, 4, 0, 2, 3, 1, 4, 3, 0, 3, 3, 5
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listen;
history;
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internal format)
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OFFSET
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0,30
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LINKS
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Table of n, a(n) for n=0..104.
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EXAMPLE
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Fibonacci(33) = 3524578, so a(33)=1 and
Fibonacci(87)=679891637638612258,
so a(87)=2.
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MATHEMATICA
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Table[DigitCount[Fibonacci[n]][[2]], {n, 0, 200}] (* From Vladimir Joseph Stephan Orlovsky, Jul 01 2011 *)
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CROSSREFS
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Cf. 0's A085854, 1's A085855, 3's A085857, 4's A085858, 5's A085859, 6's A085860, 7's A085861, 8's A085862, 9's A085863.
Sequence in context: A154338 A087436 A053255 * A132126 A031264 A106751
Adjacent sequences: A085853 A085854 A085855 * A085857 A085858 A085859
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KEYWORD
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base,nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Jul 06 2003
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STATUS
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approved
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