n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
233: | \[233!!!!+1\] | 2 × 48367178749775930176348061636982525326186047432627<50> × 6162702416354590177309092556089296464478161691341835692357006469<64> |