A066013 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.

1, 1, 1, 1, 2, 1, 1, 3, 11, 5, 3, 39, 8, 1, 15

Offset: 1

Author

N. J. A. Sloane, Dec 11 2001; revised May 06 2005

Keywords

• nonn
• more

Links

• S. T. Dougherty, M. Harada and P. Solé, Shadow Codes over Z_4, Finite Fields Applic., 7 (2001), 507-529.
• P. Gaborit, Tables of Self-Dual Codes
• 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

Cf. A105674, A105675, A105676, A105677, A105678, A016729, A066016, A105681, A105682.

Cf. A066012 for minimal Lee distances of these codes. See also A066014-A066017.