n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 306: | \[306!!!!+1\] | 4363 × 18149 × [2687646477006898576354503008645440826266705224793439465514658900385545144592772367846058361269588062450687340191905775198104476224500196532669499618023<151>] |