n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 255: | \[255!!!+1\] | 1932 × 2339 × 2218255966398581743<19> × [52354383625409073988223002041347110330742914317341913203492207733970661816880759600808485866458922675870418741626943496721749880894402622870437<143>] |