Data:K11a54/PD Presentation

X₄₂₅₁ X₈₃₉₄ X_14,6,15,5 X_16,7,17,8 X_2,9,3,10 X_18,11,19,12 X_20,13,21,14 X_22,16,1,15 X_12,17,13,18 X_10,19,11,20 X_6,21,7,22