Data:L11n335/PD Presentation

X₆₁₇₂ X_11,16,12,17 X₈₄₉₃ X_2,18,3,17 X_5,14,6,15 X_18,7,19,8 X_15,12,16,5 X_20,14,21,13 X_22,9,13,10 X_10,21,11,22 X_4,19,1,20