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too complicated to be written here. Click on the link to download a text file. 

X(4), X(20), X(631) CPCC or Hcevian points, see Table 11 infinite points of pK(X6, X3522) 

K522 is an Orion cubic. See Table 11. It has the remarkable property to be a pivotal cubic with respect to the diagonal triangle of the CPCC points with pivot the de Longchamps points X(20). 
