Hi, I want to make the sound with gradually increasing frequency.

For example

after 0s 100 Hz
after 2s 100Hz + 100Hz = 200Hz
after 4s 100Hz + 200Hz = 300Hz
after 6s 200Hz + 300Hz = 500Hz
after 8s 300Hz + 500Hz = 800Hz
....
and so on
...

I tried to write code but simply didn't work
I would be very grateful if you could help me with writing code