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A110871
Number of strictly Type I self-dual codes over Z/4Z.
0
1, 1, 1, 2, 2, 3, 4, 7, 11, 16, 19, 58, 66, 170, 290
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OFFSET
1,4
LINKS
Table of n, a(n) for n=1..15.
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:
A336030
A245620
A059348
*
A243856
A173433
A053638
Adjacent sequences:
A110868
A110869
A110870
*
A110872
A110873
A110874
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Sep 19 2005
STATUS
approved
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Last modified April 19 16:08 EDT 2024. Contains 371794 sequences. (Running on oeis4.)