n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 305: | \[305!!!+1\] | 39018166314851<14> × 44552664113056467687457<23> × [405032559932640181069408217443298436349753549770658538379414031453001379377728724966124624882375604212522617641740969222156278200323125816068541246469518900417399987218296043<174>] |