Data:L11n290/PD Presentation

X₆₁₇₂ X_5,12,6,13 X₈₄₉₃ X_2,14,3,13 X_14,7,15,8 X_11,18,12,19 X_9,21,10,20 X_19,5,20,10 X_4,15,1,16 X_17,22,18,11 X_21,16,22,17