Equation Icon  + sum oo { } L(U ) = -G--- --(l +-1)(l +-2)-U(1)(U )U(1)(U ) + --------4l(l-+-2)--------V(1)(U)V(1)(U ) . c2l+1 (l- 1)ll!(2l + 1)!! L L c2(l- 1)(l + 1)!(2l + 1)!! L L l=2 (60)