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X(4), X(6), X(25), X(30), X(74), X(113), X(1495), X(1989), X(1990) vertices of the orthic triangle K1, K2 : infinite points of the circumconic with perspector X(32) O1, O2 = bicentric pair PU(4) 

K496 is the cubic Kc2(X4) in CL053. It is the pK with pivot H and isopivot X(1495), the midpoint of X(23)X(110). 
