n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 184: | \[184!!-1\] | 153059 × 36027833 × 21147107217193<14> × 2104777397844576313<19> × 349835263690355079928365977007134719<36> × 717309982844672956510136789965338380616372511976503208631242982823438223290847686927010627<90> |