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%I #9 Aug 09 2020 07:27:34
%S 0,26,10164,2097080,311400852,37593032352,3874477609666,
%T 349607878149545,28080454247154740,2032851550702238097,
%U 133978506596448850047,8105582683474629450826
%N Number of quaternary codes (not necessarily linear) of length n with 7 words.
%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,more
%O 1,2
%A _N. J. A. Sloane_.
%E a(10)-a(12) from _Sean A. Irvine_, Aug 09 2020