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A105681 Highest minimal Lee distance of any Type 4^Z self-dual code of length n over Z/4Z. 19
2, 2, 2, 4, 2, 4, 4, 6, 2, 4, 4, 4, 4, 6, 6, 8, 6, 8, 6, 8, 8, 8, 10, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
S. T. Dougherty, M. Harada and P. Solé, Shadow Codes over Z_4, Finite Fields Applic., 7 (2001), 507-529.
W. C. Huffman, On the classification and enumeration of self-dual codes, Finite Fields Applic., 11 (2005), 451-490.
G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
E. M. Rains and N. J. A. Sloane, Self-dual codes, pp. 177-294 of Handbook of Coding Theory, Elsevier, 1998; (Abstract, pdf, ps).
CROSSREFS
See A105688 for the number of such codes. Cf. also A066012.
Sequence in context: A309441 A220498 A330772 * A368548 A240039 A369902
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 06 2005
STATUS
approved

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Last modified March 28 10:31 EDT 2024. Contains 371240 sequences. (Running on oeis4.)