n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
207: | \[207!!!+1\] | 139 × 38011 × 824647 × 2385307219587097941067<22> × 2764206956992220675135333891827<31> × 4970115874544475239896304740553121639164657616509595952335309889903<67> |