n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 234: | \[234!!!!!+1\] | 5 × 149911 × 349520094068977957<18> × 278474996118514428100042988382260130504701370407116945089921121716959<69> |