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A110306 Number of inequivalent (indecomposable or decomposable) self-dual codes of Type {4^H+}_II and length 2n. +0
4
1, 1, 2, 6, 21, 128, 3079 (list; graph; listen)
OFFSET

0,3

REFERENCES

L. E. Danielsen and M. G. Parker, On the classification of all self-dual additive codes over GF(4) of length up to 12, Preprint 2005.

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.

LINKS

G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.

CROSSREFS

Cf. A090899, A094927, A110302.

Sequence in context: A128528 A001349 A126060 this_sequence A028936 A066932 A084392

Adjacent sequences: A110303 A110304 A110305 this_sequence A110307 A110308 A110309

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Sep 09 2005

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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