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X(2), X(6), X(13), X(14), X(30), X(371), X(372), X(485), X(486), X(14645)

X(42510) → X(42521)

Geometric properties :

K1197 is a KHO-cubic. See K1191 for explanations and also CL075.

Its KHO-equation is : x^2 (5y - z) - 3 (2y - z) (y + z)^2 = 0.

The KHO-equation of its Hessian is : 4 x^2 (y - 2z) - 3 (5y - z) (y + z)^2 = 0.

K1197 is analogous to the Cullen cubic K369 with similar properties and similar KHO-equation : x^2 (2y + z) - 3 (2y - z) (y + z)^2 = 0.

See also K1198, the Cullen (third) cubic and K1199, the Cullen (fourth) cubic.