n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 113: | \[113!!-1\] | 25 × 751943 × 3984256987 × 15334603391581518950130610932341<32> × 296233250823219883325557547988762668944206247<45> |