Knot[8, 18] -> {427.265625, {0, 2185 - 13/t^10 + 115/t^8 - 463/t^6 + 
    1126/t^4 - 1857/t^2 - 1857*t^2 + 1126*t^4 - 463*t^6 + 115*t^8 - 13*t^10}}
