%I #10 Aug 08 2020 01:29:21

%S 1,1,7,87,3990,545544,131828470,35754455353,9300033719253,

%T 2216652346764139,480242932559153642,94874768179629903791,

%U 17193541252761002222476,2876019980110265392778268

%N Number of ternary codes of length 7 with n words.

%H Sean A. Irvine, <a href="/A034219/b034219.txt">Table of n, a(n) for n = 0..2187</a>

%H H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a>

%H H. Fripertinger, <a href="https://doi.org/10.1023/A:1008248618779">Enumeration, construction and random generation of block codes</a>, Designs, Codes, Crypt., 14 (1998), 213-219.

%Y Cf. A034188-.

%K nonn,fini,full

%O 0,3

%A _N. J. A. Sloane_.