%I M0262 #11 Oct 26 2023 22:45:45
%S 0,1,1,1,1,1,1,2,2,3,3,4,4,6,7,11,14,24,30
%N Number of n-dimensional determinant 2 lattices.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 400.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%K nonn
%O 0,8
%A _N. J. A. Sloane_