We consider the sequence\\
$\{a_n\}_{n=1}^{\infty} = \{25/7, 205/49, 1345/343, 9685/2401, 66985/16807, 471325/117649, ...\}$\\
a) Determine the general formula for the terms $a_n$ of the sequence.\\
$a_n = $\\
b) Find the limit of the sequence.\\
$\lim_{n \to \infty} a_n = $ Number