n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 173: | \[173!!+1\] | 25 × [615632729600081055044632040599709261177503357530410813600670549839725252734256134545896990712383063364935057453789551972085429015942167030135199427604675293<156>] |