Two trefoil knots along a closed loop, mutually interlinked, for a total of 8 crossings. The overall result is actually a prime knot, mathematical knot 8<sub>15</sub> (not composite).
AnonMoos
<p>Converted from the following PostScript vector source code:
</p>
<pre>%!
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271 arcn stroke 0 0 100 55 31 arcn stroke -274.4148 z add -35.3
120 319 330 arc 12.5 dup 3 sqrt mul rlineto stroke 18
setlinewidth .92 .96 1 setrgbcolor z 0 100 300 270 arcn stroke
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13.5 dup 3 sqrt mul rlineto stroke}def B gsave -90 rotate
-239.115 -97.6935 translate -274.4148 z add -35.3 120 135 270
arc A y B grestore 38 setlinewidth 0 setgray 0 0 100 168 193
arc stroke 18 setlinewidth .92 .96 1 setrgbcolor 0 0 100 167
194 arc stroke showpage
%EOF</pre>
Previously uploaded in PNG form to <a rel="nofollow" class="external free" href="http://katlas.math.utoronto.ca/wiki/File:8crossings-two-trefoils.png">http://katlas.math.utoronto.ca/wiki/File:8crossings-two-trefoils.png</a>