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X(2), X(6), X(13), X(14), X(15), X(16), X(17), X(18), X(397), X(398)

X(42773) → X(42784)

Geometric properties :

K1208 is a KHO-cubic. See K1191 for explanations and also CL075.

Its KHO-equation is : x^2 (2y - 3z) - 3 (2y - z) (3y^2 - 6yz + z^2) = 0.

X(6) is a point of inflexion on the curve with inflexional tangent passing through X(3091). The harmonic polar line of X(6) is the Euler line hence the tangents to K1208 at X(2), M1, M2 concur at X(6) where M1, M2 are the points with KHO-coordinates (0,3±√6,3).