Number of ways to stack N cubes. Once you get a particular stack of 4 cubes let's say, the

Jay Barrett

Jay Barrett

Answered question

2022-04-10

Number of ways to stack N cubes.
Once you get a particular stack of 4 cubes let's say, the order of the cubes doesn't matter, just which sides are being shown does.
I'm generally finding 2 numbers:
1) 6 24 n 1
and
2) 3 24 n 1
Which is the correct answer, and why?

Answer & Explanation

Agrebbef4l93

Agrebbef4l93

Beginner2022-04-11Added 6 answers

Your solutions presuppose that the cubes are identical; this is not the case in Instant Insanity. If they are all distinguishable you are missing a factor of N !.
The smaller possible solution is valid under the assumption that a stack is regarded as identical with that stack produced by turning the original stack upside down. The larger solution regards these two stacks as different.

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