Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A161560
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A161560 a(n) = floor(A000069(n)/2-1/2) +0
2
0, 0, 1, 3, 3, 5, 6, 6, 7, 9, 10, 10, 12, 12, 13, 15, 15, 17, 18, 18, 20, 20, 21, 23, 24, 24, 25, 27, 27, 29, 30, 30, 31, 33, 34, 34, 36, 36, 37, 39, 40, 40, 41, 43, 43, 45, 46, 46, 48, 48, 49, 51, 51, 53, 54, 54, 55, 57, 58, 58, 60, 60, 61, 63, 63, 65, 66, 66, 68, 68, 69, 71, 72 (list; graph; listen)
OFFSET

1,4

COMMENT

a(n) = inverse (frequency distribution) sequence of A093505(n+1).

FORMULA

a(n) = A000069(n) - n.

EXAMPLE

a(5) = 3 because the fifth odious number = 8 and floor(8/2 - 1/2) = 3. Also 8 - 5 = 3.

CROSSREFS

Cf.: A000069.

Sequence in context: A131948 A134636 A088564 this_sequence A078796 A079789 A131209

Adjacent sequences: A161557 A161558 A161559 this_sequence A161561 A161562 A161563

KEYWORD

nonn,uned

AUTHOR

Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jun 13 2009

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 24 14:25 EST 2009. Contains 167438 sequences.


AT&T Labs Research