The figure-eight knot 41 (22) is amphicheiral:
it is equivalent to its mirror image [10].
The figure-eight knot 41 (22) as the
antisymmetrical graph on a sphere [22].
The rigidly achiral S4 presentation of
the figure-eight knot 41 (22) [22].
Centro-antisymmetrical presentations of amphicheiral
rational knots (n £ 10).