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A111265
Number of strictly Type II self-dual codes over F_2 + u*F_2 of length 4n.
0
2, 10, 82, 1894
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
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:
A089469
A375867
A281547
*
A296667
A003093
A006679
Adjacent sequences:
A111262
A111263
A111264
*
A111266
A111267
A111268
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Nov 02 2005
STATUS
approved
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Last modified September 18 17:23 EDT 2024. Contains 376002 sequences. (Running on oeis4.)