n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 276: | \[276!!!!+1\] | 12396821 × [4809900217245787905713026324667297023011303834343709546881100640823486583492197878343388410698638949907454349411603398797825345707581<133>] |