%I M0233 #11 Oct 26 2023 22:51:29
%S 0,2,2,2,4,2,4,4,4,4,4,6,8,6,6,6,8,6,8,8,8,8,8,10,12,10,10,10,12,10,12
%N Highest minimal distance of self-dual code of length 2n.
%D J. H. Conway and N. J. A. Sloane, A new upper bound on the minimal distance of self-dual codes, IEEE Trans. Inform. Theory, 36 (1990), 1319-1334.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. xxiv.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%K nonn,hard
%O 0,2
%A _N. J. A. Sloane_