-28*R^13 + 8*R^14 - R^15 + R^12*(60 - X) - R^2*(-2 + X)*(1 + X)^4 -
 R*(1 + X)^5 + (1 + X)^6 + R^3*(1 + X)^3*(-5 + 6*X) + R^11*(-94 + 7*X) +
 R^9*(-114 + 33*X - 11*X^2) + R^4*(1 + X)^2*(14 - 27*X + 3*X^2) +
 R^10*(116 - 20*X + 3*X^2) + R^8*(94 - 40*X + 6*X^2) +
 R^6*(44 - 21*X - 42*X^2 - 9*X^3) + R^7*(-69 + 37*X + 20*X^2 + 2*X^3) +
 R^5*(-26 + 7*X + 53*X^2 + 17*X^3 - 3*X^4)