t^3*(1296*t^6-864*t^4+168*t^2-1)*(12*t^2+7)^2*D^4+6*t^2*(12*t^2+7)*(36288*t^8+9936*t^6-12096*t^4+1956*t^2-7)*D^3+t*(9994752*t^10+11643264*t^8+763776*t^6-1925472*t^4+207144*t^2-343)*D^2+(10782720*t^10+15323904*t^8+4634496*t^6-2443200*t^4+127512*t^2-49)*D+192*t*(10368*t^8+16848*t^6+9324*t^4-2436*t^2+49)