login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A066329 Binary string which equals n when 1's, 2's, 4's and 8's bits have weights 1, 1, 3, 5 respectively, while the other bits have their usual weights. -1 if no such string exists. 1
0, 1, 11, 100, 101, 1000, 1001, 1011, 1100, 1101, 1111, -1, -1, -1, -1, -1, 10000, 10001, 10011, 10100, 10101, 11000, 11001, 11011, 11100, 11101, 11111, -1, -1, -1, -1, -1, 100000, 100001, 100011, 100100, 100101, 101000, 101001, 101011, 101100, 101101, 101111, -1, -1, -1, -1, -1, 110000, 110001, 110011 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

John M. Yarbrough, Digital Logic Applications and Design, West Publishing, 1997, p. 26

LINKS

Table of n, a(n) for n=0..50.

CROSSREFS

Cf. A066335.

A120631 is the decimal conversion of these binary strings.

Sequence in context: A287984 A261757 A280049 * A309870 A219896 A330898

Adjacent sequences: A066326 A066327 A066328 * A066330 A066331 A066332

KEYWORD

easy,sign

AUTHOR

George E. Antoniou, Dec 15 2001

EXTENSIONS

More terms from Joshua Zucker, Jun 21 2006

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 27 12:14 EST 2023. Contains 359840 sequences. (Running on oeis4.)