2. Find the number of three even numbers which are not adjacent to each other I think it's A33 by A43, first line up three odd numbers, then form four neutral gears, and then select three from them. What's wrong with me? Why are all 72 on the Internet

2. Find the number of three even numbers which are not adjacent to each other I think it's A33 by A43, first line up three odd numbers, then form four neutral gears, and then select three from them. What's wrong with me? Why are all 72 on the Internet

You are right, that is 144, others on the Internet are not necessarily right, believe in yourself