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Homework Statement
How many regular tetrahedrons (of the same dimension) can you distinguish using 4 different colors to paint all of its 4 faces?
Homework Equations
The Attempt at a Solution
I got to 36, but I am not confident about my answer because I used mostly "real world" intuition. How can I model this mathematically?
If I used one color each time I could only paint the whole tetrahedron using that one color. So that's 4 different tetrahedrons right there, one of each different color.
If I used two different colors I could paint one face using the first color and still have 3 options for the remaining 3 faces. So that's 4*(3), 12 more options.
I could also paint two faces using one color and the other two using another. But then I would get some similar tetrahedrons by simple rotation.
How can I model this??