w6⁢(z)=ⅇb⁢π⁢ⅈ⁢Γ⁡(b-a+1)⁢Γ⁡(c-a-b)Γ⁡(1-a)⁢Γ⁡(c-a)⁢w3⁢(z)+ⅇ(c-a)⁢π⁢ⅈ⁢Γ⁡(b-a+1)⁢Γ⁡(a+b-c)Γ⁡(b)⁢Γ⁡(b-c+1)⁢w4⁢(z).