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A034238 Number of quaternary codes of length 7 with n words. +0
1
1, 1, 7, 87, 6429, 2303283, 2479201432, 3874477609666, 6599430028972418, 11005421717482468773, 17273734529317171068203, 25181456057693008339763059, 34003737003435994894150148682 (list; graph; listen)
OFFSET

0,3

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: A020556 A007803 A034219 this_sequence A132486 A155465 A137143

Adjacent sequences: A034235 A034236 A034237 this_sequence A034239 A034240 A034241

KEYWORD

nonn

AUTHOR

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

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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