n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 258: | \[258!!!+1\] | 163 × 12959 × 7950157166299<13> × 195384769065017067121253<24> × 101336855277427985342636862247381<33> × 805055859164152886175114077546727479027<39> × 9752372978419746419896020058041207339723528162911229062477<58> |