A106160 Highest minimal Hamming distance of Hermitian Type IV self-dual codes over GF(2) X GF(2) and length 2n.

2, 2, 2, 4, 4, 4, 4, 4, 6, 6, 6, 8, 6, 8, 8, 8

Offset

1,1

Links

Table of n, a(n) for n=1..16.

K. Betsumiya, T. A. Gulliver and M. Harada, Extremal self-dual codes over F_2 X F_2, Designs, Codes Crypt. 28 (2003), 171-186.

K. Betsumiya and M. Harada, Optimal self-dual codes over F_2 X F_2 with respect to the Hamming weight, IEEE Trans. Inform. Theory 50 (2004), 356-358.

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.

Crossrefs

Sequence in context: A217871 A362872 A306390 * A305117 A283426 A372057

Adjacent sequences: A106157 A106158 A106159 * A106161 A106162 A106163

Keyword

nonn,more

Author

N. J. A. Sloane, May 08 2005

Status

approved