Fn+p⁡(z)=ⅇ-z2⁢π⁢∫0∞ⅇ-z⁢t⁢tn+p-11+t⁢ⅆ⁡t=Γ⁡(n+p)2⁢π⁢En+p⁡(z)zn+p-1.