Data:L11n31/PD Presentation

X₆₁₇₂ X_18,7,19,8 X_4,19,1,20 X_5,12,6,13 X₈₄₉₃ X_9,16,10,17 X_13,22,14,5 X_15,10,16,11 X_21,14,22,15 X_11,20,12,21 X_2,18,3,17