Knot[8, 15] -> {9666.421875, {520 + 21/t^8 - 106/t^6 + 269/t^4 - 444/t^2 - 
    444*t^2 + 269*t^4 - 106*t^6 + 21*t^8, 230228 + 129/t^16 - 1271/t^14 + 
    6263/t^12 - 20644/t^10 + 50993/t^8 - 99815/t^6 + 159284/t^4 - 
    210051/t^2 - 210051*t^2 + 159284*t^4 - 99815*t^6 + 50993*t^8 - 
    20644*t^10 + 6263*t^12 - 1271*t^14 + 129*t^16}}
