Data:L11n268/PD Presentation

X₆₁₇₂ X_3,11,4,10 X_7,17,8,16 X_15,5,16,8 X_11,19,12,18 X_17,9,18,22 X_13,21,14,20 X_19,13,20,12 X_21,15,22,14 X₂₅₃₆ X_9,1,10,4