Question 3
According to the standard convention for exponentiation, $$
2^{2^{2^{2}}}=2^{\left(2^{\left(2^{2}\right)}\right)}=2^{16}=65{,}536.
$$ If the order in which the exponentiations are performed is changed, how many *other* values are possible?
2^{2^{2^{2}}}=2^{\left(2^{\left(2^{2}\right)}\right)}=2^{16}=65{,}536.
$$ If the order in which the exponentiations are performed is changed, how many *other* values are possible?