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Search: id:A060439
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| A060439 |
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Triangle T(n,k), 1 <= k <= n, giving maximal size of ternary code of length n and covering radius k. |
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+0
4
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| 1, 3, 1, 5, 3, 1, 9, 3, 3, 1, 27, 8, 3, 3, 1
(list; table; graph; listen)
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OFFSET
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1,2
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REFERENCES
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G. D. Cohen et al., Covering Codes, North-Holland, 1997, p. 174.
W. Haas, Binary and ternary codes of covering radius one ..., Discrete Math., 245 (2002), 161-178.
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LINKS
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Index entries for sequences related to covering codes
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EXAMPLE
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1; 3,1; 5,3,1; 9,3,3,1; ...
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CROSSREFS
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First column gives A004044. Cf. A060438, A060440.
Sequence in context: A102662 A142048 A117563 this_sequence A135224 A152203 A161946
Adjacent sequences: A060436 A060437 A060438 this_sequence A060440 A060441 A060442
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KEYWORD
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nonn,tabl,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Apr 07 2001
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EXTENSIONS
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Next term, T(6,1), is in range 63-73.
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