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A091326 Total number of inequivalent even binary linear codes of length n and any dimension k = 0, 1, ..., n-1. 1
1, 2, 3, 6, 9, 18, 31, 64, 123 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
"Even" means that every word has even weight. Equivalently, the all-ones vector is in the dual code.
LINKS
G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
CROSSREFS
Row sums of A091325.
Sequence in context: A218543 A266925 A018518 * A113863 A085431 A108862
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Mar 01 2004
STATUS
approved

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)