Data:L11n272/PD Presentation

X₆₁₇₂ X_3,11,4,10 X_7,17,8,16 X_15,5,16,8 X_18,11,19,12 X_22,17,9,18 X_12,21,13,22 X_20,13,21,14 X_14,19,15,20 X₂₅₃₆ X_9,1,10,4