Suppose that the first term of a pattern is 3. Each subsequent term is 2 times the term before it. Enter the first 6 terms of the pattern in the table below.

So we know that the term we start with is 3. And the next term is going to be 3 times 2, since the question states that each subsequent term is 2 times the term before it.

So then we have the series:

3, 6, 12, 24, 48, 96 ...

These are the first six terms of the pattern, found by multiplying each term prior by 2.