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Search: id:A066013
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| A066013 |
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Number of codes having highest minimal Lee distance of any Type 4^Z self-dual code of length n over Z/4Z which does not have all Euclidean norms divisible by 8, that is, is strictly Type I. Compare A105688. |
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+0
2
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| 1, 1, 1, 1, 2, 1, 1, 3, 11, 5, 3, 39, 8, 1, 15
(list; graph; listen)
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OFFSET
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1,5
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LINKS
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G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
S. T. Dougherty, M. Harada and P. Sole', Shadow Codes over Z_4, Finite Fields Applic., 7 (2001), 507-529.
P. Gaborit, Tables of Self-Dual Codes
E. M. Rains and N. J. A. Sloane, Self-dual codes, pp. 177-294 of Handbook of Coding Theory, Elsevier, 1998; (Abstract, pdf, ps).
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CROSSREFS
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Cf. A105674, A105675, A105676, A105677, A105678, A016729, A066016, A105681, A105682.
Cf. A066012 for minimal Lee distances of these codes. See also A066014-A066017.
Sequence in context: A135701 A051467 A077385 this_sequence A014521 A084389 A122022
Adjacent sequences: A066010 A066011 A066012 this_sequence A066014 A066015 A066016
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Dec 11 2001; revised May 06 2005
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