%I #7 Oct 11 2014 02:12:03
%S 0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1,1,4,3,12,12,28,49,156,368
%N Number of n-dimensional odd unimodular lattice (or quadratic forms) containing no vectors of norm 1.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 49.
%Y Cf. A005134, A054907-A054909, A054911.
%K nonn,nice,more,hard
%O 0,19
%A _N. J. A. Sloane_, May 23 2000