KA-0173
about 135sEach of the four edges of a square is painted either black or white. Two paintings count as the same if one can be rotated onto the other. How many genuinely different paintings are there?
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Two steps, or one step plus a trap.
3 in a row to finish this ladder.
0/1 solvedEach of the four edges of a square is painted either black or white. Two paintings count as the same if one can be rotated onto the other. How many genuinely different paintings are there?