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A possible approach would be starting by grouping the actions into all possible groups. For 30 actions grouped in a maximum of 6 this would mean: $$C^{30}_6 + C^{30}_5 + C^{30}_4 + C^{30}_3 + C^{30}_2 + C^{30}_1 = 768 211$$ Operations. Then, I would define the constraints to simplify the problem, as in a Constraint Satisfaction Problem (CSP). The main ...