answer :

>18, 34, 66

solution :

> 3+1=4 4+2=6 6+4=10 10+8=18 18+16=34 34+32=66

rule :

> Doubling each number and adding it to the next to get the following number.

> addition

Answer:

3,4,6,10,18,34,66

Step-by-step explanation:

3,4,6,10,...

solution:

3+1=4

4+2=6

6+4=10

10+8=18

18+16=34

34+32=66

rule:plus x*2

sorry if my answer earlier was incorrect because I misunderstood you

<3