Three of the following four are alike in a certain way on the basis of the arrangement given below, hence form a group.
\[
P \, 2 \, R \, % \, 3 \, JF \, 9T \, * \, 2 \, 16 \, HB \, 8A \, S5 \, G \, K \, 7D \, \#4
\]
Which one does not belong to the group?