n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 216: | \[216!!!!-1\] | 443 × 90372254666436779<17> × 1211262328487210824214259752406257<34> × 1544829304686146917213936563789337169695150917559831<52> |