Data:10 98/PD Presentation

X₁₆₂₇ X_3,10,4,11 X_7,18,8,19 X_17,8,18,9 X_9,2,10,3 X_11,16,12,17 X_5,15,6,14 X_15,5,16,4 X_13,20,14,1 X_19,12,20,13