0,4
Table of n, a(n) for n=0..12.
G. Nebe and N. J. A. Sloane, Home page for this lattice
Sequence in context: A189544 A154063 A205250 * A264891 A203796 A203789
Adjacent sequences: A047628 A047629 A047630 * A047632 A047633 A047634
nonn
N. J. A. Sloane
approved