equation icon  ( r ) -1 ( oo ) iek s-n -n sum sum Kn = e (ek) 2 Dn,r-n Cn,n-r n= - oo n=r eiek(2ek)s- n-r2-sir G(1 - s - 2ie+)G(r + 2n + 2) = ----------------------------------------------------------- G(r + n + 1 - s + ie) G(r + n + 1 + it )G(r + n + 1 + s + ie) ( oo sum ) × (- 1)nG(n-+-r-+-2n-+-1)-G(n-+-n-+-1-+-s +-ie)-G(n-+-n-+-1-+-it)fn n=r (n- r)! G(n + n + 1 - s- ie) G(n + n + 1 - it) n ( ) -1 sum r (-1)n (n + 1 + s - ie)n n × --------------------------------------fn , (165) n=- oo (r - n)!(r + 2n + 2)n(n + 1 - s + ie)n