n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 235: | \[235!!-1\] | 2 × 331 × 4902066326860011017<19> × [2488811238581185188593682147828040283341901233519655467597069950914557987914633929951678612567168734027667688022524017541219536967639664226594891070574854974061477786660399470673337997890339582300497480364031<208>] |