Knot[9, 18] -> {12941.265625, {826 + 40/t^8 - 188/t^6 + 449/t^4 - 714/t^2 - 
    714*t^2 + 449*t^4 - 188*t^6 + 40*t^8, 634512 + 496/t^16 - 4528/t^14 + 
    20876/t^12 - 64904/t^10 + 152656/t^8 - 287776/t^6 + 447556/t^4 - 
    581629/t^2 - 581629*t^2 + 447556*t^4 - 287776*t^6 + 152656*t^8 - 
    64904*t^10 + 20876*t^12 - 4528*t^14 + 496*t^16}}
