Pn(α,β)(cosθ)Pn(α,β)(1)=2Γ(α+1)π12Γ(α-β)Γ(β+12)010π((cos12θ)2-r2(sin12θ)2+rsinθcosϕ)n(1-r2)α-β-1r2β+1(sinϕ)2βϕr,