Achiral knot 10**2 0.2..-2 0..2 0.-1.-1.-1.-2 0 with n=15 crossings.
 

 

 

Its 16-crossing representation 102*-2 0.-1.-2 0.2..-2 0.-1.-2 0.2
 


  Its centro-antisymmetrical representation.
 


  40-crossing representation 102*-4 0.-1.-6 0.8..-4 0.-1.-6 0.8 of the 39-crossing amphicheiral knot.