Diagrams of 4_1
KnotScape diagram 4_1
KnotScape diagram mirror(4_1)
Snappy diagram 4_1
Snappy diagram mirror(4_1)
Rotatable and Zoomable Diagram
Diagram by Se-Goo Kim and Jaehyun Park
Mosaic and tile diagrams
contributed by Aaron Heap
Minimal mosaic and tile diagram