Aarex's Graham Generator

Aarex's Graham Generator is a googological function invented by Aarex Tiaokhiao and notated as Forcala,b(n). Formally it is defined as follows:

Rule 1. Condition: a=b=0:

Forcal1,1(n) = GForcal 1,1(n-1) (G stands for Graham's function)

Rule 2. Condition: n=0:

Forcala,b(0) = 1000000

Rule 3. Condition: a=0;

Forcal1,b(n) = ForcalForcal 1,b(n-1),b-1 (1)

Rule 4. Condition: Rules 1-3 don't apply.

Forcala,b(n) = Forcala-1,b(Forcala,b(n-1))