D=-84 -1769105807224417/10895399296262509696022891546544495919104*X^0 + -3530127820412649467839/7037062417497590691152351207620608*X^1 + 484002789400001782232461/581767726314284944705055490048*X^2 + 29942438985537083/2665255392410520672*X^3 + 1*X^4