User blog comment:XXxKennyDashxXx/Extended Separator Matrix Notation/@comment-29014792-20161008104614

I have better one:
 * ((0)) have level e0
 * ((0))(0) have level e0+1
 * ((0))(0)(1) have level e0+w
 * ((0))(0)(2) have level e0+w^2
 * ((0))(0)((0)) have level e0*2
 * ((0))(0)((0))(0)((0)) have level e0*3
 * ((0))(1) have level w^(e0+1)
 * ((0))(1)(0)((0))(1) have level w^(e0+1)*2
 * ((0))(1)(1) have level w^(e0+2)
 * ((0))(1)(2) have level w^(e0+w)
 * ((0))(1)((0)) have level w^(e0*2)
 * ((0))(2) have level w^w^(e0+1)
 * ((0))(2)(2) have level w^w^(e0+2)
 * ((0))(2)((0)) have level w^w^(e0*2)
 * ((0))(3) have level w^w^w^(e0+1)
 * ((0))(4) have level w^w^w^w^(e0+1)
 * ((0))((0)) have level e1
 * ((0))((0))(0) have level e1+1
 * ((0))((0))(1) have level w^(e1+1)
 * ((0))((0))(2) have level w^w^(e1+1)
 * ((0))((0))((0)) have level e2
 * ((0))((0))((0))((0)) have level e3
 * ((1)) have level ew
 * ((1))((0)) have level e(w+1)
 * ((1))((0))((0)) have level e(w+2)
 * ((1))((0))((1)) have level e(w*2)
 * ((1))((1)) have level ew^2
 * ((2)) have level ew^w
 * ((3)) have level ew^w^w
 * (((0))) have level ee0