n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 133: | \[133!!+1\] | 24 × 173 × 5110641703<10> × 131266804750409<15> × 3635026189299409050958111<25> × 54857011226150307499066904772332451072809938010943992489810581<62> |