User blog comment:Wythagoras/Strength of Hierarchical Nested Subscript Array Notation/@comment-5029411-20130731133113

[1[1/1/23]2] has growth rate chi(M(1))

[1[1/1/24]2] has growth rate chi(M(2))

[1[1/1/21,2]2] has growth rate chi(M(omega))

[1[1/1/21[2]2]2] has growth rate chi(M(omega^omega))

[1[1/1/21/2]2] has growth rate chi(M(Omega))

[1[1/1/21/1/2]2] has growth rate chi(M(Omega^2))

[1[1/1/21/1...1/1/2]2] (n 1's) has growth rate chi(M(Omega^n))

[1[1/1/21[2~2]2]2] (n 1's) has growth rate chi(M(Omega^omega))

[1[1/1/21[1/2~2]2]2] (n 1's) has growth rate chi(M(Omega^Omega))

...