Figure 8 knots with 8 edges: Both are local minimals. The first has energy 304, and the second has energy 228.

(3,4) torus knot and Figure 8 knot. These two knots look similar, but they represent different knots.

5_2 knot with 8 edges.

Knot 8_2 with 10 edges. Is the edge number minimal?