C14 := (-1/24460800*lambda[4]^2+1/9784320*lambda[3])*v[4]^14+(1/33600*lambda[4
]^2+1/26880*lambda[3])*v[4]^10*v[3]^2+(-1/480*lambda[4]^2-1/960*lambda[3])*v[4
]^6*v[3]^4-1/80*lambda[3]*v[4]^2*v[3]^6+(1/840*lambda[4]^2+13/6720*lambda[3])*
v[4]^8*v[3]*v[2]-1/8*lambda[3]*v[4]^4*v[3]^3*v[2]-3/20*lambda[3]*v[3]^5*v[2]+(
1/120*lambda[4]^2+1/240*lambda[3])*v[4]^6*v[2]^2+3/4*lambda[3]*v[4]^2*v[3]^2*v
[2]^2+lambda[3]*v[3]*v[2]^3+(-1/840*lambda[4]^2+1/210*lambda[3])*v[4]^7*v[1];