Data:L11n157/PD Presentation

X₈₁₉₂ X_2,9,3,10 X_10,3,11,4 X_17,15,18,14 X_7,17,8,16 X_15,7,16,22 X_13,19,14,18 X_6,20,1,19 X_20,12,21,11 X_12,6,13,5 X_4,21,5,22