The 1st layer has 1 cubes, which is also 1²,
the 2nd layer has 4 cubes, which is 2²
the 3rd layer has 9, which is 3²
the nth layer has n² cubes
B i think don’t come at me if it’s wrong lol
Subtract 510 from 375 because you need to find how many more points that he needs to get
