F⁡(a,b12⁢(a+b+1);z)=Γ⁡(12⁢(a+b+1))⁢Γ⁡(12)Γ⁡(12⁢a+12)⁢Γ⁡(12⁢b+12)⁢F⁡(12⁢a,12⁢b12;(1-2⁢z)2)+(1-2⁢z)⁢Γ⁡(12⁢(a+b+1))⁢Γ⁡(-12)Γ⁡(12⁢a)⁢Γ⁡(12⁢b)⁢F⁡(12⁢a+12,12⁢b+1232;(1-2⁢z)2),