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A091328 Total number of inequivalent even binary linear codes of length n and any dimension k = 0, 1, ..., n-1, with no column of zeros. 1
0, 1, 1, 3, 3, 9, 13, 33, 59 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

"Even" means that every word has even weight. Equivalently, the all-ones vector is in the dual code.

LINKS

Table of n, a(n) for n=1..9.

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

Index entries for sequences related to binary linear codes

CROSSREFS

Row sums of A091327.

Sequence in context: A225436 A183811 A303640 * A138383 A052436 A243790

Adjacent sequences:  A091325 A091326 A091327 * A091329 A091330 A091331

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 01 2004

STATUS

approved

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Last modified May 9 19:47 EDT 2021. Contains 343746 sequences. (Running on oeis4.)