758721.fig.002
Figure 2: A realization of a new metric generating tree for 𝑁 = 2 . 𝐵 1 ( 𝟎 ) corresponds to { 0 , 1 } , 𝐵 2 ( 𝟎 ) corresponds to { 2 , 1 , 0 , 1 } , and 𝐵 3 ( 𝟎 ) corresponds to { 2 , 1 , 0 , 1 , 2 , 3 , 4 , 5 } .