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Search: id:A105529
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| A105529 |
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Given a list of ternary numbers, interpret each as a ternary Gray code number, then convert to decimal. |
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+0
3
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| 0, 1, 2, 4, 5, 3, 8, 6, 7, 13, 14, 12, 17, 15, 16, 9, 10, 11, 26, 24, 25, 18, 19, 20, 22, 23, 21
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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Ternary numbers are converted into ternary Gray code by using the following algorithm: Leftmost term is leftmost Gray code term. Then going to the right, if next term b is greater than current term a, then (b - a) is the next Gray code term. (Gray code terms do not enter into the algorithmic operation). If next term b < a, then add 3 to b and perform [(3+b) - a] which becomes the next Gray code term. If b = a, the Gray code term = 0.
Interpreting any N-Ary code for n as N-Ary Gray code or visa versa results in a permutation of the natural numbers. Any N-Ary term can be converted to the N-Ary Gray code by using a generalization of the algorithmic rules such that if b < a, then add N to b and perform [(N + b) - a]. The other rules remain the same. A105530: ternary Gray code interpreted as ternary.
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EXAMPLE
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a(9) = 13 since Ternary 100 (9 decimal) interpreted as Ternary Gray code = 13.
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CROSSREFS
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Cf. A105530, A003188.
Sequence in context: A099520 A159958 A071770 this_sequence A120237 A026182 A026198
Adjacent sequences: A105526 A105527 A105528 this_sequence A105530 A105531 A105532
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KEYWORD
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nonn,easy,more
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Apr 11 2005
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