x^6 - x^4 - 4*x^3 + 21*x^2 + 2*x + 4 x^6 - x^5 - 11*x^4 + 11*x^3 + 51*x^2 + 29*x - 106 x^6 - 2*x^5 + 19*x^4 - 90*x^3 + 153*x^2 - 648*x + 6940