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Not too many (Posted on 2017-07-24) Difficulty: 1 of 5
How many distinct integer solution of the equation


List them.

See The Solution Submitted by Ady TZIDON    
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Solution Analytical solution (spoiler) Comment 1 of 1
I see n = 2 and n = 3.

After that, n! increases faster than 2^n.

Actually, I am a tiny bit surprised that there is more than one solution.

  Posted by Steve Herman on 2017-07-24 09:55:24
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