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A110865
Number of Type I but not Type II additive Hermitian self-dual codes of length n over GF(4).
0
1, 1, 3, 4, 11, 20, 59, 161, 675, 3862, 45144, 1320284
OFFSET
1,3
LINKS
L. E. Danielsen and M. G. Parker, On the classification of all self-dual additive codes over GF(4) of length up to 12, arXiv:math/0504522 [math.CO], 2005-2006.
L. E. Danielsen and M. G. Parker, On the classification of all self-dual additive codes over GF(4) of length up to 12, J. Combin. Theory A 113 (7) (2006) 1351-1367.
W. C. Huffman, On the classification and enumeration of self-dual codes, Finite Fields Applic., 11 (2005), 451-490.
W. C. Huffman, Additive self-dual codes over F_4 with an automorphism of odd prime order, Adv. Math. Commun., 1 (2007), 357-398.
G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
CROSSREFS
Sequence in context: A097072 A049977 A000677 * A152982 A001642 A001643
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 19 2005
STATUS
approved