User blog comment:PsiCubed2/Counting with Ordinals/@comment-32213734-20171208103916

Probably

ε0×ωω = [ ⟅● ⟆ [●] ]

ε0×(ωω+1) = [ ⟅● ⟆ [●] ] ⟅● ⟆

ε0×(ωω+ω) = [ ⟅● ⟆ [●] ] [ ⟅● ⟆ ]

ε0×(ωω+ω2) = [ ⟅● ⟆ [●] ] [ ⟅● ⟆ ● ]

ε0×ωω×2 = [ ⟅● ⟆ [●] ] [ ⟅● ⟆ [●] ]

ε0×ωω+1 = [ ⟅● ⟆ [●] ●]

ε0×ωω×2 = [ ⟅● ⟆ [●][●] ]

ε0×ωω 2 = [ ⟅● ⟆ [●●] ]

ε0×ωω ω = [ ⟅● ⟆ [ [●] ] ]