-1/48 a^{c0}_{a0,a3} b^{}_{c1,c2,c3,c4} c^{a4}_{a1,a2,v0} gamma1^{a3}_{a4} a+(c1) a+(c2) a+(c3) a+(c4) a+(a0) a+(a1) a+(a2) a+(v0) a-(c0)