Knot[8, 20] -> {154.3125, {16 + 4/t^4 - 12/t^2 - 12*t^2 + 4*t^4, 
   416 - 7/t^12 + 46/t^10 - 120/t^8 + 138/t^6 + 14/t^4 - 278/t^2 - 278*t^2 + 
    14*t^4 + 138*t^6 - 120*t^8 + 46*t^10 - 7*t^12}}
