goto function

Hi there,

Hope someone can help. I've been looking for a while now but can't seem to find what i'm looking for.

Basically I need cell B16 to jump to cell B2 automatically once the cell is active.

I have a sheet like this
B2 1
B3 3
B4 4 and so on.... and when i get to

B16 I don't want to enter anything but as soon as I hit enter on cell B15 and B16 becomes active, I want it to jump back to B2 so i can start the process again and enter new values.

Any ideas?

Many thanks