1/6 a^{c0,a1}_{a0} b^{}_{c1,c2,c3,c4} c^{c4,a2}_{} a+(c1) a+(c2) a+(c3) a+(a0) a-(a2) a-(a1) a-(c0)
+1/6 a^{c0,a0}_{a1} b^{}_{c1,c2,c3,c4} c^{c4,a2}_{} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(c3) a-(a0) a-(c0)
-1/24 a^{c0,a0}_{a1} b^{}_{c1,c2,c3,c4} c^{c5,a2}_{} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(c3) a+(c4) a-(a0) a-(c5) a-(c0)