n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 262: | \[262!!!+1\] | 2971959599442624617<19> × [1140505967452665640931633091669243231979215039226408974056555211747853689972506735197538960349563666949995012369360656769537512161629906619403893996139220953<157>] |