L7, L6, L5, L4, L3, L2, L1, 
L1*(L4-1/2*L5+L6)
(2/7*L1^2-L4)*(-10*L1+5*L2-L3)
(2/7*L1^2-L4)*(3*L4-L5+L6)
2*(-2*L1^2+L1*L2+2*L1*L3-L2^2-7*L5+21*L6)*L7+(7*L7-2*L1*L4+3/7*L1^3)*(12*L4-3*L5+2*L6)
(-2*L1^2+L1*L2+2*L1*L3-L2^2-7*L5+21*L6)*(2*L4-2*L5)+(7*L7-2*L1*L4+3/7*L1^3)*(-45*L1+15*L2-3*L3)
3*L1*(2*L6-4*L4)*L7+1/2*L1*L7*(40*L4-8*L5+4*L6)
L1*(5*L1-3*L2+L3)*L3+7*L1*(2*L6-4*L4)
L1*(5*L1-3*L2+L3)*(2*L2-L1)+7*L1*(2*L6-4*L4)
L1*(5*L1-3*L2+L3)*(-2*L4-2*L5)+L1*(2*L6-4*L4)*(2*L2-8*L1)+42*L1*L7
L1*(5*L1-3*L2+L3)*(8/3*L5+6*L6)+L1*(2*L6-4*L4)*(11*L1-17/3*L2+5/3*L3)-84*L1*L7
-3*L7*L1*(5*L1-3*L2+L3)+L1*(2*L6-4*L4)*(-1/2*L4+1/4*L5-1/2*L6)+1/2*L1*L7*(24*L1-6*L2)
15*L7*L1*(5*L1-3*L2+L3)+L1*(2*L6-4*L4)*(5*L4-2*L5)+1/2*L1*L7*(-120*L1+30*L2-6*L3)
(-2*L1^2+L1*L2+2*L1*L3-L2^2-7*L5+21*L6)*(-3*L1+2*L2)+147*L7-42*L1*L4+9*L1^3
