refine' Tendsto.comp Stirling.tendsto_stirlingSeq_sqrt_pi _
this✝ : 0 < π
this : (Real.sqrt π)⁻¹ = Real.sqrt π / Real.sqrt π ^ 2
⊢ Tendsto (fun n => Stirling.stirlingSeq (2 * n)) atTop (𝓝 (Real.sqrt π))
this✝ : 0 < π
this : (Real.sqrt π)⁻¹ = Real.sqrt π / Real.sqrt π ^ 2
⊢ Tendsto (fun n => 2 * n) atTop atTop