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.

0, 1, 1, 3, 3, 9, 13, 33, 59

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 * A348402 A138383 A052436

Adjacent sequences: A091325 A091326 A091327 * A091329 A091330 A091331

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 01 2004

Status

approved