n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 246: | \[246!!!!+1\] | 1051 × 34511 × 50651 × 164675031187<12> × 158195247680035461043724512383689055266584290502900896613008328537577634334063671214836820644316093<99> |