C19 := (-1/83160*v[6]^11*v[5]*v[3]-1/60*v[6]^5*v[5]^4*v[4]^2+1/3*v[6]^3*v[5]^2
*v[4]^4+2/15*v[5]^5*v[4]*v[3]+1/5040*v[6]^8*v[1]+4/45*v[5]^6*v[2]+1/20*v[6]^4*
v[4]^5+1/13970880*v[6]^16*v[4]+2/135*v[6]^3*v[5]^8+3/20*v[6]*v[4]^6+1/10*v[5]^
2*v[4]^5+1/30*v[6]^5*v[2]^2+1/20956320*v[6]^15*v[5]^2-1/3*v[5]^4*v[1]-2/45*v[5
]^8*v[4]+1/2*v[4]^4*v[2]-1/1890*v[6]^7*v[5]^6-1/120*v[6]^7*v[4]^4+1/665280*v[6
]^13*v[4]^2-1/83160*v[6]^11*v[5]^4+1/997920*v[6]^12*v[2]-v[6]*v[4]^2*v[3]^2+1/
3024*v[6]^9*v[4]*v[2]+1/2*v[6]^2*v[4]^2*v[1]+1/630*v[6]^8*v[5]^2*v[2]+1/2520*v
[6]^8*v[5]^4*v[4]+1/30*v[6]^6*v[4]^2*v[2]-1/630*v[6]^7*v[3]^2-1/5040*v[6]^10*v
[4]^3+1/6*v[6]^4*v[4]*v[3]^2+4/3*v[5]^3*v[3]*v[2]-4/945*v[6]^7*v[5]^3*v[3]+1/
18*v[6]^4*v[5]^4*v[2]-1/180*v[6]^6*v[5]^2*v[4]^3-17/997920*v[6]^12*v[5]^2*v[4]
-1/280*v[6]^8*v[5]*v[4]*v[3]-v[6]^2*v[4]*v[2]^2+2/15*v[6]^5*v[5]^2*v[4]*v[2]-2
/9*v[6]^4*v[5]^3*v[4]*v[3]-1/6*v[6]^3*v[4]^3*v[2]+v[6]^2*v[5]^2*v[4]^2*v[2]+5/
3024*v[6]^9*v[5]^2*v[4]^2-2/3*v[6]*v[5]^3*v[4]^2*v[3]-1/10*v[6]^5*v[5]*v[4]^2*
v[3]-v[6]^2*v[5]*v[4]^3*v[3]-2/45*v[6]^3*v[5]^5*v[3]-1/5*v[6]*v[5]^6*v[4]^2+1/
3*v[6]*v[5]^4*v[4]*v[2]+1/90*v[6]^4*v[5]^6*v[4]-1/30*v[6]^5*v[4]*v[1])*lambda[
4];