Table 4: Maximal models: number of cells.

Model 𝐴 3 𝐴 4 𝐵 3 𝐵 4 𝐷 4

R a n k 𝐶 0 18 180 36 576 288
R a n k 𝐶 1 36 540 72 1728 864
R a n k 𝐶 2 12 420 24 1344 672
R a n k 𝐶 3 0 60 0 192 96