Data:L11n37/PD Presentation

X₆₁₇₂ X_20,7,21,8 X_4,21,1,22 X_11,14,12,15 X₈₄₉₃ X_5,13,6,12 X_13,5,14,22 X_15,19,16,18 X_9,17,10,16 X_17,11,18,10 X_2,20,3,19