0,3
Table of n, a(n) for n=0..6.
G. Nebe and N. J. A. Sloane, Home page for this lattice
Sequence in context: A158737 A252277 A203402 * A172314 A184407 A184404
Adjacent sequences: A047631 A047632 A047633 * A047635 A047636 A047637
nonn
N. J. A. Sloane
approved