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A111266 Number of Type IV-II self-dual codes over F_2 + u*F_2 of length 4n. +0
1
1, 4, 14, 157 (list; graph; listen)
OFFSET

1,2

REFERENCES

W. C. Huffman, On the classification and enumeration of self-dual codes, Finite Fields Applic., 11 (2005), 451-490.

LINKS

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

CROSSREFS

Sequence in context: A137048 A137056 A006824 this_sequence A098851 A080986 A132555

Adjacent sequences: A111263 A111264 A111265 this_sequence A111267 A111268 A111269

KEYWORD

nonn

AUTHOR

njas, Nov 02 2005

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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