n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 284: | \[284!!!!!+1\] | 5 × 2213982172862834961997<22> × 9706610543264175314800390463642706858537108595498681533128275001038421492997757756535277885569<94> |