For ages $n \geq n_{\min}$ (cultural), acceptable partner ages fall in $\left[\max!\left(\frac{n}{2} + 7, n_{\min}\right), 2n - 14\right]$.
For ages $n \geq n_{\min}$ (cultural), acceptable partner ages fall in $\left[\max!\left(\frac{n}{2} + 7, n_{\min}\right), 2n - 14\right]$.