Ln⁡G⁡z+1∼14⁢z2+z⁢Γ⁡z+1-12⁢z⁢z+1+112⁢Ln⁡z-ln⁡A+∑k=1∞B2⁢k+22⁢k⁢2⁢k+1⁢2⁢k+2⁢z2⁢k;