Data:L11n315/PD Presentation

X₆₁₇₂ X_12,4,13,3 X_7,17,8,16 X_9,20,10,21 X_11,18,12,19 X_19,22,20,11 X_15,9,16,8 X_21,10,22,5 X_17,14,18,15 X₂₅₃₆ X_4,14,1,13