n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 246: | \[246!!!!!+1\] | 233 × 13451 × 2107751 × 3376843 × 27494883749<11> × 41890714639288359853171974881198140637712991101788956899743916445867<68> |