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A091329
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Bar coding for digits 0 through 9 in Universal Product Code (or UPC).
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0
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OFFSET
| 0,1
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COMMENTS
| These are compositions of 7 into 4 parts, but otherwise seem quite random.
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LINKS
| How Stuff Works, How UPC Bar Codes Work
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EXAMPLE
| Zero is 3211, which means either a white bar of width 3, a black bar of width 2, a white bar of width 1 and a black bar of width 1; or black bar of width 3, a white bar of width 2, a black bar of width 1 and a white bar of width 1.
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CROSSREFS
| Sequence in context: A171350 A054036 A048255 * A020414 A202612 A185465
Adjacent sequences: A091326 A091327 A091328 * A091330 A091331 A091332
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KEYWORD
| nonn,fini,full
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), May 06 2004
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