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A066016 Highest minimal Hamming distance of any Type 4^Z self-dual code of length n over Z/4Z. 21
1, 1, 1, 2, 1, 2, 3, 4, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 3, 4, 5, 6, 7, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..24.

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.

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).

CROSSREFS

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

Cf. A066017 for number of codes. See also A066012-A066017, A098068.

Sequence in context: A316231 A014781 A214500 * A098068 A194070 A195183

Adjacent sequences:  A066013 A066014 A066015 * A066017 A066018 A066019

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Dec 12 2001; revised May 06 2005

STATUS

approved

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Last modified September 21 23:55 EDT 2019. Contains 327286 sequences. (Running on oeis4.)