http://katlas.math.toronto.edu/wiki/Image:Trefoils-interlinked-ornamental.png ). Compare File:Three-trefoils-15crossings.svg . Self-made image, converted from...
Ornamental configuration of three mutually interlinked trefoil knots or triquetras, for a total of 15 crossings. Compare File:Four-trefoils-24crossings-ornamental...
