Data:K11n49/PD Presentation

X₄₂₅₁ X₈₃₉₄ X_5,12,6,13 X_7,17,8,16 X_2,9,3,10 X_11,19,12,18 X_13,22,14,1 X_15,20,16,21 X_17,11,18,10 X_19,7,20,6 X_21,14,22,15