A034213 Number of binary codes (not necessarily linear) of length n with 18 words.

0, 0, 0, 0, 133576, 78409442414, 5882732966056385, 183113271146620771933, 3633847025405824655962446, 55450696349239278359106609324, 712478090754344814381494318652666

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

References

• H. Fripertinger, Enumeration, construction and random generation of block codes, Designs, Codes, Crypt., 14 (1998), 213-219.

Links

• H. Fripertinger, Isometry Classes of Codes

Crossrefs

Cf. A034188-.