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A066329
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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.
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1
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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; internal format)
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OFFSET
| 0,3
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REFERENCES
| John M. Yarbrough, Digital Logic Applications and Design, West Publishing, 1997, p. 26
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CROSSREFS
| Cf. A066335.
A120631 is the decimal conversion of these binary strings.
Sequence in context: A037693 A098611 A090337 * A001738 A120655 A018203
Adjacent sequences: A066326 A066327 A066328 * A066330 A066331 A066332
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KEYWORD
| easy,sign
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AUTHOR
| George E. Antoniou (george.antoniou(AT)montclair.edu), Dec 15 2001
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EXTENSIONS
| More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), Jun 21 2006
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