Wκ,±12n(z)=(-1)n-12zz12n+12n!Γ(12-12n-κ)(k=1nn!(k-1)!(n-k)!(κ+12-12n)kz-k-k=0(12n+12-κ)k(n+1)kk!zk(lnz+ψ(12n+12-κ+k)-ψ(1+k)-ψ(n+1+k))),