Posts archived in math

So I was having a dream and suddenly started wondering about various properties of exponential growth. Yes I am drop dead serious. After waking up, this is what I came up with. For bonus points see if you can guess the functions used to create these numbers.

2
6
42
1806
3263442

3
5
9
17
33
65
129
257
513

4
10
22
46
94
190
382
766
1534