n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 177: | \[177!!+1\] | 2 × 179 × 3949661563 × 341065482631<12> × [1265325658306213960913205514747009526775259931261624778734201737645098488827276936274071772528272481508115108987534531418943068342725857799<139>] |