Data:10 162/PD Presentation

X₆₂₇₁ X_16,10,17,9 X_10,3,11,4 X_2,15,3,16 X_14,5,15,6 X_18,8,19,7 X_4,11,5,12 X_8,18,9,17 X_13,20,14,1 X_19,12,20,13