no the correct pattern is 52, using the following method:

• for each column, superpose the outer diagonal lines of the first and second pattern, lines that appear in both symbols are suppressed in the third (bottom) pattern, lines that only appear in one of the two first patterns are kept.
• for each column, superpose the clock hands of the first and second pattern, only keep the clock hands that appear in both symbols at the same position.

The third column has the same diagonal lines in the first and second pattern, so they disappear. Those two symbols have different clock hands so they also disappear. So the only remaining element in the pattern is the central dot (52).