MathCastle
Groups and FieldsSuperchallengeGroup Actions

Group Actions · Superchallenge problem

A regular tetrahedron's 66 edges are each painted red or blue. Two colorings count as the same if ANY symmetry of the tetrahedron matches them up, including reflections (so all 2424 symmetries – realized as all permutations of the 44 vertices – are allowed, not just the 1212 rotations). How many distinct colorings are there?