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A060451
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Triangle T(m,R) (1 <= R <= m) giving shortest possible length n of an [n,n-m] binary linear code with covering radius R.
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1
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1, 3, 2, 7, 4, 3, 15, 5, 5, 4, 31, 9, 6, 6, 5, 63, 13, 7, 7, 7, 6, 127, 19, 11, 8, 8, 8, 7, 255
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| G. D. Cohen et al., Covering Codes, North-Holland, 1997, p. 202.
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LINKS
| Index entries for sequences related to covering codes
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EXAMPLE
| 1; 3,2; 7,4,3; 15,5,5,4; 31,9,6,6,5; ...
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CROSSREFS
| Cf. A060450.
Sequence in context: A067872 A198501 A011772 * A129187 A166532 A135542
Adjacent sequences: A060448 A060449 A060450 * A060452 A060453 A060454
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KEYWORD
| nonn,tabl,nice,hard
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Apr 08 2001
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EXTENSIONS
| The next entry, T(8,2), is 25 or 26.
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