284768

Appears in sequences

• Number of "polyspheres", or "connected animals" formed from n rhombic dodecahedra (or edge-connected cubes) in the f.c.c. lattice, allowing translation and rotations of the lattice, reflections and 180 deg. rotations about a 3-fold symmetry axis of the lattice.at n=7A038174
• a(n) = n*(n+1)*(3*n^2+5*n+4)/12.at n=32A176060