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A034240
Number of quaternary codes of length 9 with n words.
0
1, 1, 9, 179, 40719, 106287822, 1295484202258, 28080454247154740, 720645869857713416245, 18726377123294059174412659, 464647323565599860735629425620, 10778588361453642047099243794276139
OFFSET
0,3
COMMENTS
a(4^9)=1 is the last term. - Sean A. Irvine, Aug 08 2020
LINKS
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: A304402 A358741 A034221 * A163132 A212704 A231726
KEYWORD
nonn,fini
AUTHOR
STATUS
approved