2π⁢∫0π𝒞2⁢ℓ+1(j)⁡(2⁢h⁢R)⁢sin⁡((2⁢ℓ+1)⁢ϕ)⁢se2⁢m+1⁡(t,h2)⁢ⅆ⁡t=(-1)ℓ+m⁢B2⁢ℓ+12⁢m+1⁡(h2)⁢Ms2⁢m+1(j)⁡(z,h),