This question is really not easy. The key to solving this kind of problems is to find a general formula that links the figure number (n) with the other variables. For this problem, there needs to be a mechanism that counts what happens to the number of squares on an odd figure number and an even figure number. I have decided to use what is called a floor function which is simply rounding down a decimal to the nearest integer. After which the number of sticks can be easily related to the number of squares. I hope this is helpful and makes sense. I look forward to seeing other proposed solutions by other tutors that may be less complicated than this one. Feel free to clarify or let me know if I have made any errors.
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