Data:L11a413/PD Presentation

X₆₁₇₂ X_12,3,13,4 X_20,13,21,14 X_22,19,11,20 X_10,15,5,16 X_8,17,9,18 X_16,7,17,8 X_18,9,19,10 X_14,21,15,22 X₂₅₃₆ X_4,11,1,12