n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 228: | \[228!!-1\] | 227 × 409349 × 2671681566811<13> × [212792913964717479357424455256160108380564208156817597250610825540653019185991552207776468295282391223423277412640363703426161234556165043549931450623838749873136645830127914563941689881824178540456483<201>] |