n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 236: | \[236!!!!+1\] | 18787 × 4343844435494473129757357494907<31> × 347459800378702308565445537872360710233<39> × 1625274878227853587527298753049009668367833<43> |