0,3

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 174.

G. Nebe and N. J. A. Sloane, Home page for this lattice

Sequence in context: A079321 A023198 A068404 this_sequence A096027 A058419 A046333

Adjacent sequences: A023940 A023941 A023942 this_sequence A023944 A023945 A023946

nonn

N. J. A. Sloane (njas(AT)research.att.com).