n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 152: | \[152!!-1\] | 151 × 2438717 × [386871407781078491116842204487223311505271144133647035666658656896206338948735011612691797111071820694564254714029359053896397<126>] |