0,3
Table of n, a(n) for n=0..20.
G. Nebe and N. J. A. Sloane, Home page for this lattice
Sequence in context: A064247 A125340 A126498 * A200548 A165030 A165016
Adjacent sequences: A029542 A029543 A029544 * A029546 A029547 A029548
nonn
N. J. A. Sloane.
approved