Data:L11n93/PD Presentation

X₆₁₇₂ X_12,4,13,3 X_16,8,17,7 X_11,20,12,21 X_17,22,18,5 X_21,18,22,19 X_19,10,20,11 X_14,10,15,9 X_8,16,9,15 X₂₅₃₆ X_4,14,1,13