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A034213 Number of binary codes (not necessarily linear) of length n with 18 words. 0
0, 0, 0, 0, 133576, 78409442414, 5882732966056385, 183113271146620771933, 3633847025405824655962446, 55450696349239278359106609324, 712478090754344814381494318652666 (list; graph; refs; listen; history; internal format)
OFFSET

1,5

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-.

Sequence in context: A204536 A061732 A023046 * A133528 A151940 A104440

Adjacent sequences:  A034210 A034211 A034212 * A034214 A034215 A034216

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.