n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 397: | \[397!!!!+1\] | 2 × 263 × 12966587134639<14> × [191603216927600022363152612409618757231543339808649368543795685830737294219033406418373285621896902662667928618055759566569973196426470135471608160937602999065106853003225657163197773309012986756338909<201>] |