login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A059009 Odd number of 0's in binary expansion. 11
0, 2, 5, 6, 8, 11, 13, 14, 17, 18, 20, 23, 24, 27, 29, 30, 32, 35, 37, 38, 41, 42, 44, 47, 49, 50, 52, 55, 56, 59, 61, 62, 65, 66, 68, 71, 72, 75, 77, 78, 80, 83, 85, 86, 89, 90, 92, 95, 96, 99, 101, 102, 105, 106, 108, 111, 113, 114, 116, 119, 120, 123, 125, 126, 128, 131 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

T. D. Noe, Table of n, a(n) for n=0..1000

FORMULA

a(0) = 0, a(2n) = -a(n) + 6n + 1, a(2n+1) = a(n) + 2n + 2. a(n) = 2n + 1/2(1-(-1)^A023416(n)) = 2n + A059448(n). - Ralf Stephan (ralf(AT)ark.in-berlin.de), Sep 17 2003

MATHEMATICA

Select[Range[0, 150], OddQ[Count[IntegerDigits[#, 2], 0]]&] (* From Harvey P. Dale, Oct 22 2011 *)

CROSSREFS

Cf. A000069, A001969, A059010-A059014.

Sequence in context: A045751 A047267 A058591 * A026179 A105107 A002253

Adjacent sequences:  A059006 A059007 A059008 * A059010 A059011 A059012

KEYWORD

nonn,easy,nice

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Dec 15 2000.

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 08:13 EST 2012. Contains 205893 sequences.