1 2 3 4 5 6 7 8 9 10

1 2 4 8 16 32 64 128 256 512

I need an equation that takes a number from the top row as it's only variable, and produces the corresponding number on the bottom. You can also move them around, like have 0 above the 2 or something, but just tell me which direction you moved which bar how far. I just need a starting point. i tried finding the differences but it just turns into circular logic.