Data:L11n15/PD Presentation

X₆₁₇₂ X_16,7,17,8 X_4,17,1,18 X_5,10,6,11 X₈₄₉₃ X_11,22,12,5 X_13,20,14,21 X_19,14,20,15 X_21,12,22,13 X_9,18,10,19 X_2,16,3,15