Powers of Two

I must have been seven when I read a Donald Duck book where Dagobert was searching for a magic chessboard that multiplies things which you put on the first square of the board. If you put a coin on the first square, two coins appear on the second square, 4 coins on the 3rd, 8 on the 4th, and so on...

In the story Tick, Trick and Track doubted it that this process will produce 18,446,744,073,709,551,615 coins like Dagobert kept telling them.
Well I doubted it too so I took pencil and paper and computed all powers of two up to 2^64.

Gee!!! The book was right. That was cool. I then decided that powers of two are so cool that they were worth being memorized up to 65536.