What is the explicit rule for this geometric sequence?
2, 6, 18, 54, …
an=3⋅2^n
an=2⋅3^n
an=2⋅3^n−1
an=3⋅2^n−1
2, 6, 18, 54, …
an=3⋅2^n
an=2⋅3^n
an=2⋅3^n−1
an=3⋅2^n−1
