Question

Start at 3. Create a pattern that multiplies each number by 2 and then adds 1. Stop when you have five numbers.

Answer 1

3, 3*2+1, 7*2+1, 15*2+1, 31*2+1

3,7,15,31,63

Answer 2

3, 3*2+1, 7*2+1, 15*2+1, 31*2+1
3, 7, 15, 31, 63

You are adding a multiple of four