Mathematics, 15.05.2021 04:10 Queenbabybunnyboo

The numbers 1,2,...,n are written on the board. Every minute, I erase two numbers a and b and replace them with a+b+ab. Clearly, after n-1 minutes there is only one number left on the board. Does the result depend on the order? For which n can I make the resulting number be odd

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The numbers 1,2,...,n are written on the board. Every minute, I erase two numbers a and b and replac...

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