2,6,14,30,....
The difference between each pair of numbers is ;) 4,8,16,....= 2^2 , 2^3, 2^4
So the next number is 2^5 = 32
Hence x - 30 = 32
x = 32 + 30 = 62 The next number in the sequence.
The next number would be 2^6
= 64
Hence x - 62 = 64
x = 62 + 64 = 126 !!!!
So the sequence would read 2,6,14,30,62,126,....