F02โก(โˆ’x,โˆ’x+ฮฒ+N+1โˆ’;โˆ’z)โขF02โก(xโˆ’N,x+ฮฑ+1โˆ’;z)=โˆ‘n=0N(โˆ’N)nโข(ฮฑ+1)nn!โขQnโก(x;ฮฑ,ฮฒ,N)โขzn,