0,2

This is the monoclinic C lattice (the even holotype) of dimension 3.

John Cannon, Table of n, a(n) for n = 0..5000

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

1 + 2*q^2 + 4*q^4 + 4*q^6 + 8*q^8 + 10*q^10 + 4*q^12 + 2*q^14 + 12*q^16 + ...

Sequence in context: A188824 A181212 A233394 * A213064 A076466 A073117

Adjacent sequences: A029596 A029597 A029598 * A029600 A029601 A029602

nonn

N. J. A. Sloane.

approved