n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 205: | \[205!!!+1\] | 263 × 911 × 105812107396517<15> × 721413626412405803610593<24> × 1592293617264392175013284564317<31> × 108616183471666240347273529124277875576054545466501189641<57> |