522720

Appears in sequences

• Theta series of 16-dimensional Barnes-Wall lattice.at n=4A008409
• Theta series of (probably nonexistent) exceptionally good 16-dimensional sphere packing.at n=8A008774
• Expansion of e.g.f. cos(log(1+tan(x))).at n=9A009021
• Number of vectors in Barnes-Wall lattice BW_{2^n} with twice the minimal norm.at n=3A110972
• Number of ways to place 2 nonattacking queens on an n X n toroidal board.at n=32A172517
• Theta series of 16-dimensional lattice OBW16, an overlattice of the Barnes-Wall lattice BW16.at n=8A239917