|
%I #7 Jul 07 2016 23:54:51
%S 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,
%T 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,
%U 5,7,10,8,6,10,8,9,6,10,8,6,6
%N Number of odd digits in Fibonacci numbers.
%H Ron Knott, <a href="http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/fibtable.html">The Fibonacci numbers</a>.
%e 1597 is a Fibonacci number and has four odd digits in it.
%p 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) ; # _R. J. Mathar_, Jul 08 2009
%Y Cf. A000045.
%Y Cf. A060384, A085855. - _R. J. Mathar_, Jul 08 2009
%K nonn,base
%O 0,8
%A _Parthasarathy Nambi_, May 11 2008
%E a(13) corrected and more terms added by _R. J. Mathar_, Jul 08 2009
|
