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A110860 Number of even formally self-dual (but not self-dual) binary codes of length 2n that have the highest possible minimal distance. 0
0, 0, 1, 0, 1, 2, 9, 141 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..8.

W. C. Huffman, On the classification and enumeration of self-dual codes, Finite Fields Applic., 11 (2005), 451-490.

CROSSREFS

Sequence in context: A173215 A110817 A189428 * A050995 A174954 A193440

Adjacent sequences:  A110857 A110858 A110859 * A110861 A110862 A110863

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 19 2005

STATUS

approved

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Last modified April 6 20:14 EDT 2020. Contains 333286 sequences. (Running on oeis4.)