Find the Second Term a_n=2(3)^n

$a_{n} = 2 {(3)}^{n}$

Substitute in the value of $n$ to find the $n$ th term.

$a_{2} = 2 {(3)}^{2}$

Raise $3$ to the power of $2$ .

$a_{2} = 2 \cdot 9$

Multiply $2$ by $9$ .

$a_{2} = 18$