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A034224 Number of ternary codes (not necessarily linear) of length n with 4 words. 0
0, 5, 34, 144, 490, 1470, 3990, 10045, 23750, 53205, 113694, 233039, 460096, 878269, 1626034 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..15.

H. Fripertinger, Isometry Classes of Codes

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

CROSSREFS

Cf. A034188-.

Sequence in context: A317297 A135973 A186636 * A167023 A316559 A284850

Adjacent sequences:  A034221 A034222 A034223 * A034225 A034226 A034227

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

EXTENSIONS

a(11)-a(15) from Sean A. Irvine, Aug 08 2020

STATUS

approved

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Last modified June 13 07:45 EDT 2021. Contains 344981 sequences. (Running on oeis4.)