Answer
3, 4, 6, 10, 18
Work Step by Step
$a_1 =3, a_{k+1}=2(a_k-1)$
$a_2=2(a_1-1)=2(3-1)=4$
$a_3=2(a_2-1)=2(4-1)=6$
$a_4=2(a_3-1)=2(6-1)=10$
$a_5=2(a_4-1)=2(10-1)=18$
3, 4, 6, 10, 18
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