3x plus 1

Math is beautiful

Amazon

As an Amazon affiliate I earn a comission from qualified sales. (Als Amazon-Partner verdiene ich an qualifizierten Verkäufen.) If you buy anything from Amazon after following any affiliate link to Amazon, I get a small kickback, which does not cost you a penny. I encourage you to use this ability to give something back to me. It does not really matter what you buy after following any of my Amazon links. Here is a sample link to the best offer for Microsoft 365.

If you would like to buy something for me, here is my Amazon wish list.

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