User blog:Maxywaxy/Someone tell me if this is right

Okay, so this post is about some calculations on the Fast Growing Hierarchy. I was making some calculations when i wrote this:

f_0(x)=x+1

f_1(x)=2x

f_2(x)=x*(2^x)

f_3(x)=x*((2^x)^x) (this may be wrong)

f_4(x)=x*((2^x)^(x^2)) (this probably is wrong)

f_5(x)=x*((2^x)^(x^3)) (if above is right, this is right, but this is really probably wrong)

therefore

f_Y(x) x*((2^x)^(x^(y-2)))

I'm pretty sure FGH grows WAY faster than this, where does this mess up?

on the approximations part of the FGH page ([//googology.wikia.com/wiki/Fast-growing_hierarchy#Approximations https://googology.wikia.com/wiki/Fast-growing_hierarchy#Approximations]) it says this:

comment below if you figure out what i'm doing wrong

if i'm doing anything wrong at all (highly likely)