t^3*(5120*t^6-512*t^4-128*t^2+1)*(160*t^2-11)^2*D^4+2*t^2*(160*t^2-11)*(5734400*t^8-916480*t^6-22016*t^4+7200*t^2-33)*D^3+t*(7045120000*t^10-1554432000*t^8+99680000*t^6+1825920*t^4-381744*t^2+847)*D^2+(7700480000*t^10-1646592000*t^8+121452800*t^6-4571520*t^4-215952*t^2+121)*D+128*t*(11520000*t^8-2400000*t^6+154550*t^4-11440*t^2-121)