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Search: id:A136610
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| A136610 |
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Number of odd digits in Fibonacci numbers. |
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+0
2
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| 0, 1, 1, 0, 1, 1, 0, 2, 1, 1, 2, 1, 1, 2, 3, 1, 2, 4, 1, 2, 2, 2, 5, 2, 1, 3, 5, 3, 5, 3, 1, 3, 4, 4, 3, 3, 5, 5, 4, 3, 6, 5, 4, 5, 5, 7, 7, 7, 4, 5, 4, 5, 6, 9, 5, 6, 8, 6, 7, 4, 6, 7, 8, 7, 7, 9, 7, 7, 5, 7, 10, 8, 6, 10, 8, 9, 6, 10, 8, 6, 6
(list; graph; listen)
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OFFSET
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0,8
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LINKS
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Ron Knott, The Fibonacci numbers.
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EXAMPLE
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1597 is a Fibonacci number and has four odd digits in it.
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MAPLE
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nodss := proc(n) local dgs, d; dgs := convert(n, base, 10) ; add( d mod 2, d=dgs) ; end: A136610 :=proc(n) nodss(combinat[fibonacci](n)) ; end: seq( A136610(n), n=0..80) ; [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 08 2009]
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CROSSREFS
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Cf. A000045.
Cf. A060384, A085855. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 08 2009]
Sequence in context: A104368 A012257 A162320 this_sequence A101022 A051064 A153096
Adjacent sequences: A136607 A136608 A136609 this_sequence A136611 A136612 A136613
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KEYWORD
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nonn,base
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), May 11 2008
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EXTENSIONS
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a(13) corrected and more terms added by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 08 2009
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