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A091848
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Johnson bound J(n,4,2).
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2
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1, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 15, 17, 18, 21, 22, 25, 26, 29, 30, 33, 35, 38, 40, 44, 45, 49, 51, 55, 57, 61, 63, 68, 70, 75
(list; graph; refs; listen; history; internal format)
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OFFSET
| 7,3
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REFERENCES
| W. Chu and C. J. Colbourn, Optimal (n,4,2)-OCC of small orders, Discrte Math., 279 (2004), 163-172.
F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier-North Holland, 1978, p. 527, Cor. 5.
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CROSSREFS
| Cf. A091848.
Sequence in context: A034886 A011882 A025767 * A017886 A029038 A011877
Adjacent sequences: A091845 A091846 A091847 * A091849 A091850 A091851
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KEYWORD
| nonn,easy,more
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 13 2004
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EXTENSIONS
| Sequence should also be extended backwards to n=1.
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