%I #10 Apr 15 2019 03:13:47
%S 1,1,1,3,7,24
%N Number of ternary self-dual codes of length 4n.
%H W. C. Huffman, <a href="https://doi.org/10.1016/j.ffa.2005.05.012">On the classification and enumeration of self-dual codes</a>, Finite Fields Applic., 11 (2005), 451-490.
%H G. Nebe, E. M. Rains and N. J. A. Sloane, <a href="http://neilsloane.com/doc/cliff2.html">Self-Dual Codes and Invariant Theory</a>, Springer, Berlin, 2006.
%K nonn,more
%O 0,4
%A _N. J. A. Sloane_, Sep 19 2005