help, keep getting same wrong answer every time. always comes out to 14 no matter what i try

Question

a₁=3

a_n=4a_n-1+2

find fourth term in the sequence

Answer 1

14 is only the 2nd term.

Plug 14 into a_n to get 58 for the 3rd term.

Then plug 58 in to get 234 for the 4th term.

You were on the right track!